WEBVTT 00:00:00.000 --> 00:00:03.700 Imagine, just for a moment, a place defined entirely 00:00:03.700 --> 00:00:06.820 by extremes. You're standing in a town that boasts 00:00:06.820 --> 00:00:09.619 both some of the hottest like most blistering 00:00:09.619 --> 00:00:12.660 summers and at the same time the absolute driest 00:00:12.660 --> 00:00:15.759 year on record. Yeah, a place where historically 00:00:15.759 --> 00:00:18.699 the rivers were literally paved with gold. Exactly, 00:00:19.079 --> 00:00:22.059 sparking this frantic rush of humanity. But then 00:00:22.059 --> 00:00:23.899 you look at it today and the residents are out 00:00:23.899 --> 00:00:27.679 there battling literal plagues of rabbits and 00:00:27.679 --> 00:00:30.000 winter skies that are just choked with wood smoke. 00:00:30.179 --> 00:00:32.759 It's a total geographic anomaly. The environmental 00:00:32.759 --> 00:00:34.840 and historical dials are just constantly turned 00:00:34.840 --> 00:00:37.549 up to 11. They really are. Welcome to today's 00:00:37.549 --> 00:00:41.829 Deep Dive. We are exploring a single just wildly 00:00:41.829 --> 00:00:45.009 fascinating source today, which is the comprehensive 00:00:45.009 --> 00:00:47.750 Wikipedia article on Alexander, New Zealand. 00:00:48.090 --> 00:00:50.549 And our mission for you today isn't just to read 00:00:50.549 --> 00:00:53.100 off a map or give you a dry history lesson. No, 00:00:53.219 --> 00:00:55.619 definitely not. We want to uncover how a community 00:00:55.619 --> 00:00:58.060 survives, how it erupts, and how it actually 00:00:58.060 --> 00:01:00.780 thrives when both nature and history are constantly 00:01:00.780 --> 00:01:03.179 throwing the wildest curveballs imaginable their 00:01:03.179 --> 00:01:05.799 way. Because the story of Alexandra is, well, 00:01:06.040 --> 00:01:07.939 it's really a master class in human adaptation. 00:01:08.519 --> 00:01:10.420 It shows us what happens when people are pushed 00:01:10.420 --> 00:01:12.439 right up against the edge of what an environment 00:01:12.439 --> 00:01:14.340 will tolerate. And they just decide to dig their 00:01:14.340 --> 00:01:17.530 heels in any way. Exactly. So let's set the scene 00:01:17.530 --> 00:01:20.489 for you. Geographically, Alexandra is this small 00:01:20.489 --> 00:01:23.409 urban area nestled in the central Otago district 00:01:23.409 --> 00:01:26.269 of New Zealand's South Island. It sits right 00:01:26.269 --> 00:01:29.969 inland at the confluence of the Clutha and Manuherakea 00:01:29.969 --> 00:01:33.810 rivers. And as of June 2025, it's home to roughly 00:01:33.810 --> 00:01:37.090 5860 people. So it's a pretty tight knit community. 00:01:37.310 --> 00:01:39.950 Very tight knit. But to understand the Alexandra 00:01:39.950 --> 00:01:43.109 of today, we have to rewind to the ultimate extreme 00:01:43.109 --> 00:01:45.430 event that birthed this town in the first place. 00:01:45.709 --> 00:01:49.170 which is the 1860s Otago Gold Rush. Oh, the sheer 00:01:49.170 --> 00:01:51.370 chaos of this period. I mean, it laid the foundation 00:01:51.370 --> 00:01:53.709 for everything that followed. The landscape was 00:01:53.709 --> 00:01:55.629 suddenly overrun because of a discovery made 00:01:55.629 --> 00:01:58.109 by two miners, Horatio Hartley and Christopher 00:01:58.109 --> 00:02:00.109 Riley. Right. And these two had actually met 00:02:00.109 --> 00:02:02.430 over in the United States during the California 00:02:02.430 --> 00:02:04.969 Gold Rush. They traveled to New Zealand. And 00:02:04.969 --> 00:02:08.069 in 1862, they found themselves in the Cromwell 00:02:08.069 --> 00:02:10.719 Gorge. And the source notes that over just two 00:02:10.719 --> 00:02:14.099 months, working in absolute secrecy, they pulled 00:02:14.099 --> 00:02:17.139 34 kilograms of gold out of the gorge. Which 00:02:17.139 --> 00:02:19.500 is, I mean, that begs the question, right? How 00:02:19.500 --> 00:02:21.759 do you pull that much gold out of the earth without 00:02:21.759 --> 00:02:24.360 anyone noticing? Well, you have to operate in 00:02:24.360 --> 00:02:27.400 incredibly remote, rugged terrain and keep a 00:02:27.400 --> 00:02:30.219 remarkably low profile. They were panning in 00:02:30.219 --> 00:02:33.020 this massive, treacherous river system where 00:02:33.020 --> 00:02:35.340 the sheer scale of the wilderness kind of hid 00:02:35.340 --> 00:02:37.699 them. Yeah, but they couldn't keep it a secret 00:02:37.699 --> 00:02:40.599 forever. No Mainly because the colonial government 00:02:40.599 --> 00:02:42.719 had essentially put a bounty on the land There 00:02:42.719 --> 00:02:45.960 was this lucrative reward on offer for new viable 00:02:45.960 --> 00:02:48.719 goldfield discoveries to stimulate the economy 00:02:48.719 --> 00:02:52.259 So they had to cash in right? To claim that reward, 00:02:52.699 --> 00:02:54.740 Hartley and Riley had to declare their find in 00:02:54.740 --> 00:02:57.139 Dunedin. And the moment they went public, the 00:02:57.139 --> 00:02:59.780 floodgates just opened. Yeah, within an incredible 00:02:59.780 --> 00:03:02.819 short time frame, 2 ,000 miners descended on 00:03:02.819 --> 00:03:05.539 what would eventually become Alexandra. And the 00:03:05.539 --> 00:03:07.800 conditions they found were brutally uninvited. 00:03:07.860 --> 00:03:09.819 Oh, absolutely brutal. I mean, there was a lack 00:03:09.819 --> 00:03:13.020 of food, a lack of equipment, and virtually no 00:03:13.020 --> 00:03:15.840 wood for building or fires. It was just desperate 00:03:15.840 --> 00:03:18.259 men facing down the elements in a rocky basin. 00:03:18.680 --> 00:03:21.000 And the demographics of this rush were highly 00:03:21.000 --> 00:03:24.300 complex, too. Up to 50 % of these early miners 00:03:24.300 --> 00:03:27.240 were of Chinese origin, mostly Cantonese. Wow, 00:03:27.419 --> 00:03:29.939 50%. Yeah, and their approach to the environment 00:03:29.939 --> 00:03:31.680 was fundamentally different from the European 00:03:31.680 --> 00:03:34.919 miners. while many European prospectors rushed 00:03:34.919 --> 00:03:38.180 in, grabbed the easy surface gold, and then just 00:03:38.180 --> 00:03:40.000 quickly abandoned their claims when the extraction 00:03:40.000 --> 00:03:42.139 got difficult. The Chinese miners did something 00:03:42.139 --> 00:03:45.639 else. Yeah. They utilized highly organized cooperative 00:03:45.639 --> 00:03:48.300 syndicates. They worked methodically to rework 00:03:48.300 --> 00:03:51.360 the abandoned tailings and riverbeds, using collective 00:03:51.360 --> 00:03:54.620 labor to extract wealth that the more individualistic 00:03:54.620 --> 00:03:57.599 miners had just entirely missed. That is so smart. 00:03:57.900 --> 00:04:00.199 But regardless of their methods, the danger was 00:04:00.199 --> 00:04:03.419 just absolute. The Clutha River is massive and 00:04:03.419 --> 00:04:06.219 powerful. The source notes that in the year 1863 00:04:06.219 --> 00:04:09.719 alone, 37 men drowned in the river or its tributaries. 00:04:09.919 --> 00:04:12.620 And out of those 37 men, 12 could not even be 00:04:12.620 --> 00:04:15.080 named. That's heartbreaking. They were just swallowed 00:04:15.080 --> 00:04:17.519 by the currents, remaining completely anonymous 00:04:17.519 --> 00:04:20.839 casualties of this frantic rush for wealth. OK, 00:04:20.839 --> 00:04:23.339 let's unpack this. Because once the easy gold 00:04:23.339 --> 00:04:25.920 in the river ran out, the town didn't just pack 00:04:25.920 --> 00:04:28.560 up and leave. They escalated their technology. 00:04:28.660 --> 00:04:30.920 They definitely escalated. They moved into what 00:04:30.920 --> 00:04:34.459 was called paddock dredging. So imagine a floating 00:04:34.459 --> 00:04:37.600 multi -story factory operating as a giant river 00:04:37.600 --> 00:04:41.540 vacuum. From 1896 to 1924, and then again in 00:04:41.540 --> 00:04:45.420 the 1950s and 60s, these massive dredges utilized 00:04:45.420 --> 00:04:48.339 a continuous loop of heavy steel buckets. Right. 00:04:48.420 --> 00:04:50.220 And these buckets would literally scrape the 00:04:50.220 --> 00:04:52.480 bedrock of the river, pull up tons of gravel, 00:04:53.000 --> 00:04:55.060 wash it through heavy machinery on board to extract 00:04:55.060 --> 00:04:57.970 the gold, and then just dump the massive rocks 00:04:57.970 --> 00:05:00.410 out the back. Yeah, and they produced this constant 00:05:00.410 --> 00:05:03.009 deafening noise and huge clouds of dust that 00:05:03.009 --> 00:05:05.410 plagued the town day and night. But the most 00:05:05.410 --> 00:05:07.810 staggering detail is how this physical destruction 00:05:07.810 --> 00:05:10.069 interacted with the town's infrastructure. Yeah, 00:05:10.069 --> 00:05:12.230 the mechanical strain of those dredges was so 00:05:12.230 --> 00:05:14.449 immense that it actually affected the power grid. 00:05:14.610 --> 00:05:17.930 Wait, really? The power grid? Yeah. When those 00:05:17.930 --> 00:05:20.949 heavy steel buckets hit particularly hard schist 00:05:20.949 --> 00:05:23.529 rock under the riverbed, the electric motors 00:05:23.529 --> 00:05:27.050 had to draw. a massive surge of current to keep 00:05:27.050 --> 00:05:30.149 the bucket line moving. Oh my god. And that sudden 00:05:30.149 --> 00:05:33.269 massive electrical draw would pull so much voltage 00:05:33.269 --> 00:05:36.189 from the local grid that the lights of the entire 00:05:36.189 --> 00:05:39.350 town of Alexandra would physically dim. So you 00:05:39.350 --> 00:05:42.310 literally had the town's electricity pulsing 00:05:42.310 --> 00:05:44.970 to the rhythm of this violent destruction of 00:05:44.970 --> 00:05:48.050 the river. What's fascinating here is the sheer 00:05:48.050 --> 00:05:50.689 unbelievable scale of the extraction that caused 00:05:50.689 --> 00:05:53.589 that strain. To give you an idea of the reward 00:05:53.589 --> 00:05:56.470 driving this destruction, a single gold dredge 00:05:56.470 --> 00:06:00.610 named the Lady Mullineux captured 12 ,234 ounces 00:06:00.610 --> 00:06:03.290 of gold in just one week. That is... I can't 00:06:03.290 --> 00:06:05.310 even wrap my head around that. Right. That level 00:06:05.310 --> 00:06:07.649 of resource extraction permanently altered the 00:06:07.649 --> 00:06:09.670 physical shape of the river. But as much as they 00:06:09.670 --> 00:06:11.790 were fighting the water and the bedrock, the 00:06:11.790 --> 00:06:13.430 miners quickly discovered that their greatest 00:06:13.430 --> 00:06:15.930 adversary wasn't the river itself. No, it was 00:06:15.930 --> 00:06:18.300 the atmospheric bowl they were standing in. The 00:06:18.300 --> 00:06:20.459 dredging physically reshaped the river, but the 00:06:20.459 --> 00:06:22.639 geography of the basin dictated everything else. 00:06:22.860 --> 00:06:25.379 It really did. Let's talk about the extreme climate 00:06:25.379 --> 00:06:29.360 of Alexandra, because this is not a typical breezy 00:06:29.360 --> 00:06:33.279 New Zealand coastal town. This place is an inland 00:06:33.279 --> 00:06:35.800 trap. Summer temperatures have been recorded 00:06:35.800 --> 00:06:39.459 hitting 38 .7 degrees Celsius. Which is incredibly 00:06:39.459 --> 00:06:42.060 hot for that region. Right. But then winter lows 00:06:42.060 --> 00:06:45.079 dropped down to negative 11 .8 degrees Celsius. 00:06:45.420 --> 00:06:48.060 It basically borders on a semi -arid climate, 00:06:48.500 --> 00:06:50.220 being one of the furthest towns from the ocean 00:06:50.220 --> 00:06:52.800 in the entire country. The surrounding mountain 00:06:52.800 --> 00:06:55.019 ranges strip the moisture from the weather systems 00:06:55.019 --> 00:06:57.399 before they ever reach the valley floor. And 00:06:57.399 --> 00:06:59.300 Alexandra actually holds the national record 00:06:59.300 --> 00:07:01.439 for the lowest rainfall in a single calendar 00:07:01.439 --> 00:07:04.879 year. In 1964, they received just two hundred 00:07:04.879 --> 00:07:07.240 and twelve millimeters of rain for the entire 00:07:07.240 --> 00:07:09.939 year. That intense lack of moisture combined 00:07:09.939 --> 00:07:12.660 with the Ring of Hills creates a highly specific 00:07:12.660 --> 00:07:14.800 atmospheric dynamic. Now, hold on, let me push 00:07:14.800 --> 00:07:16.620 back on this for a second, because if you're 00:07:16.620 --> 00:07:18.860 listening to this, you hear dry, sunny town and 00:07:18.860 --> 00:07:21.079 you probably think it sounds like an ideal getaway. 00:07:21.180 --> 00:07:24.100 Sure, it sounds perfect on paper. Exactly. And 00:07:24.100 --> 00:07:26.300 sure, we hear about the town having a smog issue 00:07:26.300 --> 00:07:29.019 in the winter, but Alexandra has fewer than 6 00:07:29.019 --> 00:07:32.339 ,000 people. Are you telling me that a few thousand 00:07:32.339 --> 00:07:35.420 residential fireplaces burning wood can genuinely 00:07:35.420 --> 00:07:37.959 create a pollution problem that rivals the industrial 00:07:37.959 --> 00:07:41.379 smog of a major city? How does a tiny rural town 00:07:41.379 --> 00:07:43.959 compete with urban centers packed with millions 00:07:43.959 --> 00:07:46.560 of cars? It sounds counterintuitive, but it all 00:07:46.560 --> 00:07:49.060 comes down to the physics of temperature inversions. 00:07:49.480 --> 00:07:52.519 In a major city, Wind and rising heat usually 00:07:52.519 --> 00:07:54.420 disperse pollution into the upper atmosphere. 00:07:54.639 --> 00:07:57.279 Right. It just blows away. Exactly. But in winter, 00:07:57.600 --> 00:07:59.639 Alexandra experiences high pressure weather systems 00:07:59.639 --> 00:08:02.319 that create descending air. Because the town 00:08:02.319 --> 00:08:05.600 sits in a geographic bowl, that cold, dense air 00:08:05.600 --> 00:08:08.019 sinks to the valley floor and gets trapped by 00:08:08.019 --> 00:08:10.560 the warmer air above it. It acts like a literal 00:08:10.560 --> 00:08:13.399 physical lid. So the lack of wind becomes a structural 00:08:13.399 --> 00:08:15.560 feature of the environment. Precisely. The wind 00:08:15.560 --> 00:08:17.769 stops entirely. The temperatures remain below 00:08:17.769 --> 00:08:20.050 freezing all day. So naturally, the residents 00:08:20.050 --> 00:08:22.350 fire up their wood and coal burners to stay warm. 00:08:22.569 --> 00:08:25.449 Yeah, you have to. Right. But the PM10 particulates 00:08:25.449 --> 00:08:28.269 that microscopic soot from the fires. They're 00:08:28.269 --> 00:08:30.709 pumped out of the chimneys. They hit that invisible 00:08:30.709 --> 00:08:33.509 atmospheric lid and they stop. They have nowhere 00:08:33.509 --> 00:08:36.169 to go. Oh, wow. So it just builds up. The smoke 00:08:36.169 --> 00:08:39.529 simply accumulates day after day under the inversion 00:08:39.529 --> 00:08:43.100 layer. The result is that this picturesque rural 00:08:43.100 --> 00:08:46.820 town regularly exceeds national air quality guidelines 00:08:46.820 --> 00:08:49.679 from May through August, experiencing some of 00:08:49.679 --> 00:08:51.519 the worst winter air pollution in the country. 00:08:52.110 --> 00:08:54.289 But the community hasn't just resigned itself 00:08:54.289 --> 00:08:56.389 to breathing soot, right? The source highlights 00:08:56.389 --> 00:08:59.590 a brilliant initiative from 2018, where local 00:08:59.590 --> 00:09:02.529 primary school kids from Alexandra teamed up 00:09:02.529 --> 00:09:06.289 with scientists from NIWA to study this exact 00:09:06.289 --> 00:09:08.110 problem. Yeah, that was incredible. These kids 00:09:08.110 --> 00:09:10.389 didn't just read static sensors. They literally 00:09:10.389 --> 00:09:12.750 strapped air quality monitors to their bikes 00:09:12.750 --> 00:09:15.509 and physically mapped the town. They spent four 00:09:15.509 --> 00:09:18.090 months tracking how the cold air pooling in slight 00:09:18.090 --> 00:09:20.330 geographical dips concentrated the pollution 00:09:20.330 --> 00:09:23.179 block by block. It demonstrates a community that 00:09:23.179 --> 00:09:25.740 is deeply invested in the granular mechanics 00:09:25.740 --> 00:09:28.639 of its own environment. When your town is a basin 00:09:28.639 --> 00:09:31.419 that traps extreme heat, extreme cold, and your 00:09:31.419 --> 00:09:33.940 own fireplace smoke, you really have no choice 00:09:33.940 --> 00:09:36.460 but to study it and adapt. And adaptation is 00:09:36.460 --> 00:09:38.200 forced upon them economically, too, because how 00:09:38.200 --> 00:09:40.539 do you sustain a town in a dry dirt bowl once 00:09:40.539 --> 00:09:43.059 the easy gold is gone? You pivot to agriculture. 00:09:43.440 --> 00:09:45.759 Exactly. Though, of course, farming in a semi 00:09:45.759 --> 00:09:48.220 -arid basin brings a whole new set of chaotic 00:09:48.220 --> 00:09:50.860 variables. The shift from gold to agriculture 00:09:50.860 --> 00:09:53.200 required a complete reimagining of the landscape. 00:09:53.600 --> 00:09:56.919 By the late 1880s, the focus shifted to stone 00:09:56.919 --> 00:10:00.080 fruit orchards. Peaches, plums, apples, apricots, 00:10:00.360 --> 00:10:03.019 cherries. The town celebrates this successful 00:10:03.019 --> 00:10:05.379 pivot every spring with the Alexandra Blossom 00:10:05.379 --> 00:10:08.039 Festival, which has been running since 1957. 00:10:08.299 --> 00:10:10.080 And they also figured out how to cultivate grapes 00:10:10.080 --> 00:10:12.519 in this extreme climate, leveraging the intense 00:10:12.519 --> 00:10:14.940 summer heat. Yeah. Alexandra boasts some of the 00:10:14.940 --> 00:10:17.700 world's most southern vineyards, famous for producing 00:10:17.700 --> 00:10:20.960 highly sought after pinot noir, despite the constant 00:10:20.960 --> 00:10:24.149 threat of devastating late frosts. But the earliest 00:10:24.149 --> 00:10:26.730 and perhaps most ambitious agricultural gamble 00:10:26.730 --> 00:10:30.309 was pastoral farming. In 1861, two brothers from 00:10:30.309 --> 00:10:33.350 Scotland, Watson and Alexander Shenan, established 00:10:33.350 --> 00:10:35.429 the Galloway Station. And to survive the harsh 00:10:35.429 --> 00:10:37.730 terrain, they needed livestock engineered for 00:10:37.730 --> 00:10:41.269 extremes. So they imported 15 merino rams and 00:10:41.269 --> 00:10:44.769 27 merino ewes directly from the king of Prussia's 00:10:44.769 --> 00:10:47.429 stud. And that was not cheap. No. The source 00:10:47.429 --> 00:10:50.129 notes the cost for this importation was £2 ,000. 00:10:50.590 --> 00:10:53.909 In 1861, That was a massive fortune to gamble 00:10:53.909 --> 00:10:56.690 on sheep. Huge gamble. But the mechanism behind 00:10:56.690 --> 00:10:59.350 the gamble was sound. Merino sheep have incredibly 00:10:59.350 --> 00:11:01.750 dense fleeces perfectly adapted to survive those 00:11:01.750 --> 00:11:04.690 bitter negative 11 degree winters and they thrive 00:11:04.690 --> 00:11:08.049 on sparse dry land vegetation. It paid off and 00:11:08.049 --> 00:11:10.710 Merino farming became a regional staple. But 00:11:10.710 --> 00:11:13.250 attempting to engineer an ecosystem as fragile 00:11:13.250 --> 00:11:16.490 as central Otago often triggers cascading unintended 00:11:16.490 --> 00:11:18.970 consequences. Here's where it gets really interesting 00:11:18.970 --> 00:11:21.389 because in 1866 an organization called the the 00:11:21.389 --> 00:11:24.590 Climatization Society of Otago introduced 60 00:11:24.590 --> 00:11:27.570 rabbits into the area. Just 60 rabbits. Right. 00:11:27.950 --> 00:11:30.190 And their logic was to provide familiar sport 00:11:30.190 --> 00:11:33.169 hunting and a food source for the settlers, essentially 00:11:33.169 --> 00:11:35.049 trying to replicate the feeling of an English 00:11:35.049 --> 00:11:37.720 country estate. which demonstrates a profound 00:11:37.720 --> 00:11:40.179 misunderstanding of the local ecology. I mean, 00:11:40.279 --> 00:11:43.779 the dry, easily -burrowed soils of central Otago 00:11:43.779 --> 00:11:47.059 were a perfect incubator. Within just five years, 00:11:47.220 --> 00:11:50.259 those 60 rabbits had triggered a biological explosion. 00:11:50.620 --> 00:11:54.419 By 1871, they were a full -blown plague. It's 00:11:54.419 --> 00:11:56.830 astonishing how fast that happened. Rabbits are 00:11:56.830 --> 00:11:59.490 induced ovulators with incredibly short gestation 00:11:59.490 --> 00:12:01.570 periods, meaning their population mathematics 00:12:01.570 --> 00:12:04.590 are just exponential. The source notes they were 00:12:04.590 --> 00:12:06.710 eating the hard -won pasture land completely 00:12:06.710 --> 00:12:09.190 bare, threatening the very pastoral farming the 00:12:09.190 --> 00:12:11.830 town was trying to build. So the town's response 00:12:11.830 --> 00:12:14.370 was to declare war on the species. This gave 00:12:14.370 --> 00:12:17.450 rise to the Great Easter Bunny Hunt, run by the 00:12:17.450 --> 00:12:20.149 local Lions Club since the early 1990s. Which 00:12:20.149 --> 00:12:23.299 is quite the event. Oh yeah. Every Easter, locals 00:12:23.299 --> 00:12:25.899 compete in a massive community -wide culling 00:12:25.899 --> 00:12:28.000 event to shoot as many rabbits as physically 00:12:28.000 --> 00:12:30.919 possible. But you cannot simply shoot your way 00:12:30.919 --> 00:12:33.860 out of exponential math. The source highlights 00:12:33.860 --> 00:12:37.259 a fascinating twist in this conflict. In 2018, 00:12:37.559 --> 00:12:39.559 the hunt was actually cancelled by the regional 00:12:39.559 --> 00:12:41.740 council. They decided to try something new. Yeah, 00:12:41.879 --> 00:12:44.299 they decided to implement a targeted ecosystem 00:12:44.299 --> 00:12:47.240 intervention, introducing a rabbit virus known 00:12:47.240 --> 00:12:52.159 as RHDV1K5. Think of it like deploying a biological 00:12:52.159 --> 00:12:55.480 software patch designed to cleanly delete a pest 00:12:55.480 --> 00:12:58.179 from the system. But the patch failed. The virus 00:12:58.179 --> 00:13:00.580 didn't have the desired impact at all. Wait, 00:13:00.620 --> 00:13:03.580 why did it fail? How does a targeted virus just 00:13:03.580 --> 00:13:06.379 not work on a massive dense population of pests? 00:13:06.659 --> 00:13:09.620 Well, it comes down to viral ecology. Wild rabbit 00:13:09.620 --> 00:13:12.519 populations often carry pre -existing benign 00:13:12.519 --> 00:13:15.220 callus viruses. Okay. And these benign strains 00:13:15.220 --> 00:13:17.820 act almost like a natural vaccine, conferring 00:13:17.820 --> 00:13:20.139 a level of immunity across the population against 00:13:20.139 --> 00:13:22.940 the lethal. introduced strains. Combine that 00:13:22.940 --> 00:13:24.860 localized immunity with the sheer reproductive 00:13:24.860 --> 00:13:27.519 rate of the survivors, and the population instantly 00:13:27.519 --> 00:13:30.299 backfills any losses. That is wild. The source 00:13:30.299 --> 00:13:32.179 bluntly states that after the virus attempt, 00:13:32.200 --> 00:13:34.139 there were actually more rabbits around than 00:13:34.139 --> 00:13:36.279 ever. So the time reviewed it to blunt force. 00:13:36.679 --> 00:13:39.740 In 2021, the hunters went back out and shot over 00:13:39.740 --> 00:13:43.059 10 ,000 rabbits in a single event. And the experts 00:13:43.059 --> 00:13:45.259 reviewed the data and concluded that removing 00:13:45.259 --> 00:13:48.000 10 ,000 rabbits still didn't significantly dent 00:13:48.000 --> 00:13:50.919 the overall population. The reproductive math 00:13:50.919 --> 00:13:53.659 of the rabbit simply outpaces human intervention. 00:13:53.980 --> 00:13:56.340 It perfectly encapsulates the tension of living 00:13:56.340 --> 00:13:59.429 in Alexandra. The community constantly pushes 00:13:59.429 --> 00:14:01.730 back against nature to carve out a living, and 00:14:01.730 --> 00:14:03.830 nature constantly pushes back with overwhelming 00:14:03.830 --> 00:14:06.350 force. Living through those relentless cycles, 00:14:06.409 --> 00:14:09.470 weathering 1878 floods that turned the valley 00:14:09.470 --> 00:14:12.549 into an inland sea, enduring booming gold rushes 00:14:12.549 --> 00:14:15.129 and devastating busts, and fighting endless plagues 00:14:15.129 --> 00:14:17.669 of rabbits, it shapes the psychology of a town. 00:14:17.730 --> 00:14:20.250 It really breeds a specific, stubborn kind of 00:14:20.250 --> 00:14:22.769 community spirit. Yes. You can see this fierce 00:14:22.769 --> 00:14:25.230 desire to preserve their home on their own terms 00:14:25.230 --> 00:14:27.899 reflected in their local landmarks. The physical 00:14:27.899 --> 00:14:30.220 infrastructure of the town absolutely tells the 00:14:30.220 --> 00:14:32.720 story of that stubborn resilience. The shaky 00:14:32.720 --> 00:14:34.960 bridge is a perfect example. It was built in 00:14:34.960 --> 00:14:38.539 1879 as a 60 meter long suspension bridge to 00:14:38.539 --> 00:14:41.720 crock the Manahourakea River. But by 1906, it 00:14:41.720 --> 00:14:44.460 was rendered completely obsolete by a newer road 00:14:44.460 --> 00:14:47.259 and rail bridge. And usually, a town will tear 00:14:47.259 --> 00:14:50.000 down obsolete infrastructure or just let it collapse 00:14:50.000 --> 00:14:52.179 into the river. Right. It even earned the nickname 00:14:52.179 --> 00:14:54.720 Shaky Bridge because the decking fell into such 00:14:54.720 --> 00:14:57.960 severe disrepair. But the locals refused to let 00:14:57.960 --> 00:15:00.659 it die. A group called the Pioneer Bridge Committee 00:15:00.659 --> 00:15:04.169 rallied. raised the necessary funds, and meticulously 00:15:04.169 --> 00:15:07.110 saved it. Today, it stands as a beloved pedestrian 00:15:07.110 --> 00:15:09.889 tourist attraction. And we see that same fiercely 00:15:09.889 --> 00:15:11.629 protective spirit directed toward the native 00:15:11.629 --> 00:15:14.269 ecology, too. We discussed the devastation caused 00:15:14.269 --> 00:15:16.909 by introduced rabbits, but the community is actively 00:15:16.909 --> 00:15:19.669 engineering spaces to restore the original biological 00:15:19.669 --> 00:15:22.889 balance. Right, the sanctuary. Yes. In 2005, 00:15:23.250 --> 00:15:25.169 residents formed an ecological trust and built 00:15:25.169 --> 00:15:28.110 the Mokomoko Dryland Sanctuary. They constructed 00:15:28.110 --> 00:15:30.809 a massive 1 .6 kilometer long predator -proof 00:15:30.809 --> 00:15:34.250 fence to enclose 14 hectares of land. They built 00:15:34.250 --> 00:15:36.690 an absolute fortress and they built it specifically 00:15:36.690 --> 00:15:39.389 to protect native dry land species like the giant 00:15:39.389 --> 00:15:42.029 otago skink. Which is a massive lizard. Yeah. 00:15:42.470 --> 00:15:45.389 This is a reptile that can grow up to 300 millimeters 00:15:45.389 --> 00:15:49.049 long. The ecology of the basin is the only place 00:15:49.049 --> 00:15:51.850 these skinks can survive. They rely entirely 00:15:51.850 --> 00:15:54.750 on the specific schist rock formations that absorb 00:15:54.750 --> 00:15:57.080 the intense summer heat. And the fence serves 00:15:57.080 --> 00:15:59.240 as a permanent barrier against the mammalian 00:15:59.240 --> 00:16:01.179 predators that were introduced alongside the 00:16:01.179 --> 00:16:03.700 rabbits. It requires a massive commitment to 00:16:03.700 --> 00:16:06.600 understand and protect the granular specific 00:16:06.600 --> 00:16:10.080 needs of a localized ecosystem. So what does 00:16:10.080 --> 00:16:12.220 this all mean? How do you sum up the personality 00:16:12.220 --> 00:16:14.820 of a town that coordinates primary school smog 00:16:14.820 --> 00:16:17.299 studies, builds heavily fortified enclosures 00:16:17.299 --> 00:16:20.139 for giant lizards, and wages an unwinnable war 00:16:20.139 --> 00:16:22.320 against rabbits? It's a lot to take in. I think 00:16:22.320 --> 00:16:24.559 the definitive answer lies in the story of the 00:16:24.559 --> 00:16:26.620 Alexandra Clock. Oh, that is a remarkable piece 00:16:26.620 --> 00:16:29.840 of civic history. In 1968, the local J .C.'s 00:16:29.840 --> 00:16:32.200 club decided they wanted to build a giant clock 00:16:32.200 --> 00:16:35.200 on a hill overlooking the town. They raised about 00:16:35.200 --> 00:16:37.120 three thousand dollars and poured in countless 00:16:37.120 --> 00:16:39.539 hours of volunteer labor. The engineering of 00:16:39.539 --> 00:16:41.539 this thing is massive, too. I mean, it's 11 meters 00:16:41.539 --> 00:16:43.820 in diameter, featuring a minute hand that is 00:16:43.820 --> 00:16:46.659 five point six meters long. Yeah, and it's illuminated 00:16:46.659 --> 00:16:50.500 by 150 LED lights casting a glow over the entire 00:16:50.500 --> 00:16:53.120 basin at night. It is the ultimate symbol of 00:16:53.120 --> 00:16:55.659 civic pride. A literal beacon of their permanence 00:16:55.659 --> 00:16:57.379 in the valley. Wait, let me give you the best 00:16:57.379 --> 00:17:01.440 detail from the source. In April 2020, this massive, 00:17:01.879 --> 00:17:04.819 beloved civic timepiece suddenly stopped working. 00:17:05.160 --> 00:17:08.000 It wasn't an electrical failure or a storm. It 00:17:08.000 --> 00:17:10.160 broke because someone decided to physically swing 00:17:10.160 --> 00:17:12.539 on the giant metal hands of the clock. You're 00:17:12.539 --> 00:17:15.900 kidding. No. The Joyrider broke the mechanical 00:17:15.900 --> 00:17:18.559 drive, freezing time over the entire town of 00:17:18.559 --> 00:17:21.960 Alexandra at exactly 8 .34. If we connect this 00:17:21.960 --> 00:17:24.420 to the bigger picture, all of these quirks... 00:17:24.440 --> 00:17:27.359 A wobbly suspension bridge lovingly restored, 00:17:27.980 --> 00:17:31.319 a 14 -hectare fortress bit for skinks, a giant 00:17:31.319 --> 00:17:33.660 glowing clock on a hill broken by a joyrider, 00:17:34.160 --> 00:17:36.079 they paint a picture of a community that is deeply 00:17:36.079 --> 00:17:38.740 and sometimes chaotically entangled with its 00:17:38.740 --> 00:17:41.140 surroundings. That's exactly it. They take immense 00:17:41.140 --> 00:17:42.940 active pride in their environment, even when 00:17:42.940 --> 00:17:45.109 that environment is fiercely unforgiving. It 00:17:45.109 --> 00:17:47.789 really is a masterclass in human adaptation. 00:17:48.410 --> 00:17:51.390 From the 1860s miners desperately dredging the 00:17:51.390 --> 00:17:53.710 Clutha River and dimming the town's lights in 00:17:53.710 --> 00:17:56.349 their pursuit of gold, to modern kids tracking 00:17:56.349 --> 00:17:59.509 the physics of winter smog, to the endless mathematics 00:17:59.509 --> 00:18:01.269 of the Easter bunny hunt. That's all connected. 00:18:01.549 --> 00:18:04.049 Yeah. Alexandra is a town defined entirely by 00:18:04.049 --> 00:18:06.930 its ability to weather extremes with a combination 00:18:06.930 --> 00:18:09.849 of stubbornness and ingenuity. And exploring 00:18:09.849 --> 00:18:12.650 this history leaves us with a fascinating paradox 00:18:12.650 --> 00:18:15.720 about how our relations with the land evolves 00:18:15.720 --> 00:18:18.720 over time. Early in our discussion we unpack 00:18:18.720 --> 00:18:21.119 the mechanics of paddock dredging. You know, 00:18:21.119 --> 00:18:23.779 the loud, dusty, violent churning of the riverbed 00:18:23.779 --> 00:18:27.380 to extract wealth. Which was, by any modern standard, 00:18:27.660 --> 00:18:30.279 an environmental catastrophe. It left massive, 00:18:30.420 --> 00:18:33.220 rocky scars all over the valley floor. It did. 00:18:33.400 --> 00:18:35.740 Yet today, the tilings from that dredging the 00:18:35.740 --> 00:18:38.200 sprawling fields of discarded rocks and churned 00:18:38.200 --> 00:18:41.839 -up earth, they cover 170 hectares. But they 00:18:41.839 --> 00:18:43.740 are no longer viewed as a catastrophe. Right. 00:18:43.819 --> 00:18:46.079 They are legally protected as a historic reserve, 00:18:46.420 --> 00:18:49.019 known as the Ernst Clued dredged tailings. The 00:18:49.019 --> 00:18:51.269 mechanisms of distr— have aged into protected 00:18:51.269 --> 00:18:54.430 heritage. We literally took the very industrial 00:18:54.430 --> 00:18:57.269 mess that dimmed the town's lights, put a physical 00:18:57.269 --> 00:19:00.210 fence around it, and decided it was sacred history. 00:19:00.630 --> 00:19:02.730 Which raises a profound question to leave you 00:19:02.730 --> 00:19:05.579 with today as you go about your week. Look around 00:19:05.579 --> 00:19:08.140 at the massive industrial scars, the digital 00:19:08.140 --> 00:19:10.519 waste, or the environmental tailings we are creating 00:19:10.519 --> 00:19:13.359 right now in our own modern rushes for wealth 00:19:13.359 --> 00:19:16.299 and progress. Which of our current chaotic messes 00:19:16.299 --> 00:19:18.859 will future generations put a fence around, label 00:19:18.859 --> 00:19:21.240 as historic, and fiercely decide to protect? 00:19:21.460 --> 00:19:23.940 An amazing question to chew on. From the town 00:19:23.940 --> 00:19:26.200 with the hottest summers, the driest years, and 00:19:26.200 --> 00:19:29.440 a clock forever stuck at 8 .34, thanks for joining 00:19:29.440 --> 00:19:30.440 us on this deep dive.