WEBVTT 00:00:00.000 --> 00:00:04.160 Right now, there is an alkaline earth metal that's 00:00:04.160 --> 00:00:05.919 actually hardening the enamel of your teeth. 00:00:07.080 --> 00:00:09.080 And millions of miles away, there's a massive 00:00:09.080 --> 00:00:11.519 rock tumbling through the asteroid belt. Right. 00:00:11.800 --> 00:00:14.859 And mathematically speaking, they are inextricably 00:00:14.859 --> 00:00:19.359 linked by the exact same human label. So welcome 00:00:19.359 --> 00:00:22.899 to this deep dive. Today, we're taking a seemingly 00:00:22.899 --> 00:00:26.739 mundane source document and using it to explore 00:00:26.739 --> 00:00:30.809 how humanity basically categorizes the universe. 00:00:30.949 --> 00:00:32.609 Which is such a wild mission, right, because 00:00:32.609 --> 00:00:35.789 we are looking at a Wikipedia disambiguation 00:00:35.789 --> 00:00:38.810 page for the number 20. Yep, exactly. It's essentially 00:00:38.810 --> 00:00:41.630 this huge data set of human behavior that's just 00:00:41.630 --> 00:00:44.030 masquerading as a simple web directory. And for 00:00:44.030 --> 00:00:45.890 you, you know, listening right now, just think 00:00:45.890 --> 00:00:48.469 about how often you encounter this number without 00:00:48.469 --> 00:00:50.219 even giving it a second thought. I mean, it's 00:00:50.219 --> 00:00:52.259 on your money. It's in historical references. 00:00:52.479 --> 00:00:54.520 It might be your highway exit. Oh, totally. But 00:00:54.520 --> 00:00:56.619 by the end of this conversation, I promise you 00:00:56.619 --> 00:00:58.759 will never look at the number 20 the same way 00:00:58.759 --> 00:01:01.719 again. It turns out that this integer, the one 00:01:01.719 --> 00:01:07.350 right between 19 and 21, acts as this. bizarrely 00:01:07.350 --> 00:01:10.409 ubiquitous anchor across totally disconnected 00:01:10.409 --> 00:01:12.849 facets of human knowledge. It really does. It's 00:01:12.849 --> 00:01:16.909 a universal shorthand for foundation, for milestones, 00:01:17.489 --> 00:01:19.390 and well, just utility in general. Okay, let's 00:01:19.390 --> 00:01:21.230 unpack this. Yeah. Because we have to start at 00:01:21.230 --> 00:01:23.549 the very beginning, like how this number serves 00:01:23.549 --> 00:01:25.810 as a fundamental building block in both physical 00:01:25.810 --> 00:01:27.870 matter and time. Right, the temporal stuff is 00:01:27.870 --> 00:01:30.920 huge. Exactly. Yeah. The source casually lists 00:01:30.920 --> 00:01:33.700 these massive historical waypoints right alongside 00:01:33.700 --> 00:01:35.420 scientific classification. So you see you've 00:01:35.420 --> 00:01:39.540 got 20 BC, 80, 20, 1920, and 2020. And then it 00:01:39.540 --> 00:01:41.939 just pivots straight into calcium, which is an 00:01:41.939 --> 00:01:44.439 alkaline earth metal on the periodic table. Which 00:01:44.439 --> 00:01:46.260 is found in our bones and teeth, right? Yeah, 00:01:46.260 --> 00:01:48.980 because calcium's atomic number is 20, meaning 00:01:48.980 --> 00:01:51.819 it has exactly 20 protons in its nucleus. That 00:01:51.819 --> 00:01:53.760 is just the immutable physics of the universe. 00:01:54.099 --> 00:01:56.180 But human scientific categorization goes even 00:01:56.180 --> 00:01:59.200 further. We apply that exact same numerical banner 00:01:59.200 --> 00:02:03.620 to 20 Messalia, which is a massive asteroid just 00:02:03.620 --> 00:02:05.459 floating out in the void of the asteroid belt. 00:02:05.700 --> 00:02:07.439 I really want to focus on that connection between 00:02:07.439 --> 00:02:09.379 the physical and the temporal. Let's think of 00:02:09.379 --> 00:02:12.120 the number 20, like architectural scaffolding. 00:02:12.120 --> 00:02:14.620 Okay, I like that. Just as calcium, you know, 00:02:14.759 --> 00:02:18.180 element 20, forms the literal structural scaffolding 00:02:18.180 --> 00:02:20.840 of our physical bodies to keep our bones and 00:02:20.840 --> 00:02:22.900 teeth strong enough to survive decades. Right, 00:02:23.020 --> 00:02:25.900 the physical support. Exactly. The number itself 00:02:25.900 --> 00:02:28.099 provides the chronological scaffolding we use 00:02:28.099 --> 00:02:31.240 to mark major human eras. Without these hard 00:02:31.240 --> 00:02:34.780 numerical boundaries, history is just this amorphous 00:02:34.780 --> 00:02:37.479 endless blur of days. We absolutely need those 00:02:37.479 --> 00:02:40.460 round base 10 milestones like jumping from 1920 00:02:40.460 --> 00:02:43.199 to 2020 just creates a structural grid for us. 00:02:43.259 --> 00:02:45.180 Yeah, it allows our brains to actually store 00:02:45.180 --> 00:02:48.099 and retrieve historical memories. It's all just 00:02:48.099 --> 00:02:50.699 scaffolding holding up our reality. If we connect 00:02:50.699 --> 00:02:53.099 this to the bigger picture, it reveals a really 00:02:53.099 --> 00:02:55.590 profound mechanism in human cognition. I mean, 00:02:55.710 --> 00:02:57.490 the universe does not care about our base 10 00:02:57.490 --> 00:03:00.169 or base 20 counting systems. No, of course not. 00:03:00.330 --> 00:03:02.789 Those are just accidents of evolutionary biology. 00:03:03.009 --> 00:03:05.009 It's just the fact that we have ten fingers and 00:03:05.009 --> 00:03:07.849 ten toes. Yet we project our anatomy onto the 00:03:07.849 --> 00:03:10.030 cosmos to make sense of it. That is such a good 00:03:10.030 --> 00:03:13.389 point. Right. Assigning 20 to an atomic element, 00:03:13.469 --> 00:03:15.990 or calling something the 20th minor planet ever 00:03:15.990 --> 00:03:18.530 discovered, that's our way of imposing order 00:03:18.530 --> 00:03:21.610 on the sheer chaos of the natural world. We force 00:03:21.610 --> 00:03:23.810 our human scale onto things that are fundamentally 00:03:23.810 --> 00:03:26.409 inhuman. An asteroid obviously doesn't know it 00:03:26.409 --> 00:03:28.810 was the 20th one we spotted. Exactly. But giving 00:03:28.810 --> 00:03:31.409 it that number turns it from this terrifying 00:03:31.409 --> 00:03:35.229 space rock into just another cataloged item in 00:03:35.229 --> 00:03:37.550 our collective inventory. And that cataloging 00:03:37.550 --> 00:03:40.990 urge, it bleeds directly into how we measure 00:03:40.990 --> 00:03:43.590 our own lives. Yeah. We use those same numerical 00:03:43.590 --> 00:03:46.550 boundaries to define human eras. Yeah, like 20 00:03:46.550 --> 00:03:49.370 BC and 8020 represent those early attempts to 00:03:49.370 --> 00:03:51.889 draw a line in the sand of time, establishing 00:03:51.889 --> 00:03:54.590 a clear before and after. Right, and fast forward 00:03:54.590 --> 00:03:57.849 to 1920 or 2020, and those years become entire 00:03:57.849 --> 00:03:59.930 cultural moods. The Roaring Twenties isn't just 00:03:59.930 --> 00:04:02.490 a date, you know. It's an aesthetic, an economic 00:04:02.490 --> 00:04:04.990 era, a defined chapter. Which naturally brings 00:04:04.990 --> 00:04:07.229 us to what we actually do within those chapters. 00:04:07.530 --> 00:04:09.870 Once we have our bones and planets and timelines 00:04:09.870 --> 00:04:13.169 sorted out, we create culture. We build legacies. 00:04:13.270 --> 00:04:15.370 Oh, absolutely. And here's where it gets really 00:04:15.370 --> 00:04:17.819 interesting. Because looking at the entertainment 00:04:17.819 --> 00:04:20.100 and cultural data in the source document, there 00:04:20.100 --> 00:04:24.120 is an absolute deluge of properties named 20 00:04:24.120 --> 00:04:27.459 or 20. It is overwhelming. The sheer volume of 00:04:27.459 --> 00:04:29.620 cultural artifacts adopting this title spans 00:04:29.620 --> 00:04:32.399 nearly every imaginable demographic and geographic 00:04:32.399 --> 00:04:35.060 boundary. I was looking at this wall of music 00:04:35.060 --> 00:04:37.920 titles and honestly, it feels a little lazy. 00:04:38.199 --> 00:04:41.220 Lazy? How so? Well, you survived 20 years in 00:04:41.220 --> 00:04:42.939 the music industry and the best title you can 00:04:42.939 --> 00:04:45.360 come up with is just the number 20. I mean, we 00:04:45.360 --> 00:04:47.699 are talking about albums by huge R &B legends 00:04:47.699 --> 00:04:50.759 like Boyz II Men and TLC. Oh, and Southern rock 00:04:50.759 --> 00:04:54.079 icons like Lynyrd Skynyrd, their 1997 album. 00:04:54.240 --> 00:04:56.519 Right. And Harry Connick Jr. and the Jazz World 00:04:56.519 --> 00:04:59.180 back in 1988. We even have folk music from Kate 00:04:59.180 --> 00:05:01.300 Rusby, alternative rock from Taking Back Sunday, 00:05:01.839 --> 00:05:04.199 and electronic dance music from Chicane. Plus 00:05:04.199 --> 00:05:06.680 the pop group No Angels. It just feels like a 00:05:06.680 --> 00:05:08.939 severe lack of imagination when artists hit this 00:05:08.939 --> 00:05:11.459 specific milestone. What's fascinating here is 00:05:11.459 --> 00:05:14.240 that, sure, it looks lazy if you view it purely 00:05:14.240 --> 00:05:17.420 as a creative title, but consider it as a monument 00:05:17.420 --> 00:05:20.199 instead. Okay, a monument. I'm listening. In 00:05:20.199 --> 00:05:22.839 the entertainment industry, careers are famously 00:05:22.839 --> 00:05:26.459 brutal and short -lived. A three -year run is 00:05:26.459 --> 00:05:29.839 considered a massive success, so surviving for 00:05:29.839 --> 00:05:32.500 two decades is basically a statistical anomaly. 00:05:32.680 --> 00:05:35.360 That's true. It's a meat grinder. Right, so when 00:05:35.360 --> 00:05:38.459 Boys to Second Men, or TLC, release an album 00:05:38.459 --> 00:05:41.120 simply titled 20, they aren't suffering from 00:05:41.120 --> 00:05:43.240 writer's block, they're planting a flag. Oh, 00:05:43.279 --> 00:05:45.379 I see. They are essentially saying, we have weathered 00:05:45.379 --> 00:05:48.079 the storms of changing tastes, industry shifts, 00:05:48.360 --> 00:05:51.060 and time itself, and we are still standing. It's 00:05:51.060 --> 00:05:54.100 an assertion of dominance. Ah, so it's a victory 00:05:54.100 --> 00:05:56.000 lap that doesn't even need a poetic metaphor. 00:05:56.439 --> 00:05:58.839 The number itself is the flex. Exactly, and it's 00:05:58.839 --> 00:06:01.019 a flex that's recognized across all cultures. 00:06:01.220 --> 00:06:03.540 Notice the cross -cultural pattern in the source. 00:06:03.560 --> 00:06:06.579 You have an Irish pop vocal band like Westlife 00:06:06.579 --> 00:06:09.220 mounting the 20 Tour. Oh yeah, and the Filipina 00:06:09.220 --> 00:06:11.819 singer, Regine Velasquez, holding a concert simply 00:06:11.819 --> 00:06:14.730 called 20. Plus, South Korean rock band FT Island 00:06:14.730 --> 00:06:17.529 dropping an album called 20, and the Japanese 00:06:17.529 --> 00:06:21.250 jazz fusion band Kaseopia using 20th. Because 00:06:21.250 --> 00:06:24.009 decades are our primary unit of historical measurement, 00:06:24.490 --> 00:06:27.790 one decade is a good start, but two decades cements 00:06:27.790 --> 00:06:30.529 a legacy. It serves as this irresistible, universally 00:06:30.529 --> 00:06:33.410 understood anchor for artistic endurance. But 00:06:33.410 --> 00:06:35.050 then you have a totally different application 00:06:35.050 --> 00:06:37.410 of the exact same number in the same industry. 00:06:37.970 --> 00:06:40.350 Look at the K -pop group ITZY. They have a song 00:06:40.350 --> 00:06:42.990 called Hashtag 20. And there's a track called 00:06:42.990 --> 00:06:46.009 20 by Karma to burn on their wild, wonderful 00:06:46.009 --> 00:06:49.009 purgatory album. Not to mention the Italian TV 00:06:49.009 --> 00:06:52.110 channel called 20 or the 2015 South Korean film 00:06:52.110 --> 00:06:54.850 simply titled 20. Right. And in those contexts, 00:06:54.889 --> 00:06:56.970 like the movie and the ITZY song, they aren't 00:06:56.970 --> 00:06:59.550 looking backward at a massive two decade legacy. 00:06:59.709 --> 00:07:01.589 They're looking at the transition from youth 00:07:01.589 --> 00:07:04.220 to adulthood. Which is the foundational threshold 00:07:04.220 --> 00:07:06.519 of modern adulthood. It works on both ends of 00:07:06.519 --> 00:07:08.600 the temporal spectrum. How do you mean? On one 00:07:08.600 --> 00:07:11.600 end, it signifies the raw, untested maturity 00:07:11.600 --> 00:07:13.779 of a young adult stemming out into the wider 00:07:13.779 --> 00:07:17.720 world. On the other end, it represents the cemented, 00:07:17.899 --> 00:07:20.420 battle -tested legacy of veterans looking back 00:07:20.420 --> 00:07:22.920 at a massive body of work. That makes so much 00:07:22.920 --> 00:07:25.800 sense. The number is versatile enough to act 00:07:25.800 --> 00:07:28.660 as the ultimate cultural milestone for both beginnings 00:07:28.660 --> 00:07:32.120 and retrospectives. Exactly. It's the same psychological 00:07:32.120 --> 00:07:34.899 mechanism using our biological counting system 00:07:34.899 --> 00:07:38.160 to give weight to a moment in time, but deployed 00:07:38.160 --> 00:07:40.579 for completely different emotional effects. One 00:07:40.579 --> 00:07:42.899 is anticipating the future, the other is validating 00:07:42.899 --> 00:07:46.180 the past. But, you know, building a legacy in 00:07:46.180 --> 00:07:49.360 music or transitioning into adulthood is an abstract 00:07:49.360 --> 00:07:52.500 concept. Legacy isn't just about time. No, it's 00:07:52.500 --> 00:07:55.459 not. endurance. It's about laying down roots 00:07:55.459 --> 00:07:58.040 in a physical place, which perfectly explains 00:07:58.040 --> 00:08:00.959 why pioneers and engineers felt the need to stamp 00:08:00.959 --> 00:08:03.199 this exact number onto the map and onto their 00:08:03.199 --> 00:08:05.319 machines. This is where the cultural psychology 00:08:05.319 --> 00:08:08.560 of 20 transitions into hard utility. We move 00:08:08.560 --> 00:08:10.879 from the concert hall to the dirt and the asphalt. 00:08:11.180 --> 00:08:13.600 The geographic naming conventions in this document 00:08:13.600 --> 00:08:17.519 are fascinatingly stark. Like in England, there 00:08:17.519 --> 00:08:21.579 is a hamlet literally named 20, located in Lincolnshire. 00:08:21.740 --> 00:08:23.980 Which, interestingly, used to be anchored by 00:08:23.980 --> 00:08:26.500 the 20 railway station. Right. And across the 00:08:26.500 --> 00:08:29.220 ocean in the United States, there's an unincorporated 00:08:29.220 --> 00:08:32.360 community in Georgia known as the 20, or West 00:08:32.360 --> 00:08:34.740 Green. And if you go to Minnesota, you can find 00:08:34.740 --> 00:08:37.580 20 Lake. Plus, in California's eastern Sierra, 00:08:37.720 --> 00:08:40.850 there is the 20 Lakes Basin. So what does this 00:08:40.850 --> 00:08:43.590 all mean? Well, naming a physical place after 00:08:43.590 --> 00:08:46.389 a number strips away all the romance of the landscape. 00:08:46.970 --> 00:08:49.850 It is pure, unadulterated function. That's very 00:08:49.850 --> 00:08:51.929 blunt. When surveyors and pioneers were moving 00:08:51.929 --> 00:08:54.970 into vast, unknown wilderness areas, they didn't 00:08:54.970 --> 00:08:57.580 always reach for poetic inspiration. They reach 00:08:57.580 --> 00:08:59.740 for the comfort of geometry and mathematics. 00:09:00.299 --> 00:09:02.960 Dividing land into grids and parcels was a way 00:09:02.960 --> 00:09:05.759 of taming a terrifying environment. So naming 00:09:05.759 --> 00:09:08.620 a lake or a basin 20 was a way of anchoring themselves. 00:09:08.820 --> 00:09:10.600 Like, we don't know what's out there in the woods, 00:09:10.899 --> 00:09:13.019 but we know this is section 20. And that makes 00:09:13.019 --> 00:09:15.500 it ours. It's a way of claiming ownership through 00:09:15.500 --> 00:09:19.620 categorization. And that desire for sheer unromantic 00:09:19.620 --> 00:09:22.279 utility translates directly into the machines 00:09:22.279 --> 00:09:24.779 we use to traverse those landscapes. Which brings 00:09:24.779 --> 00:09:27.059 us to the other uses section of the document, 00:09:27.539 --> 00:09:30.620 highlighting a bizarrely specific fleet of executive 00:09:30.620 --> 00:09:32.960 and luxury cars. Right. The automotive section. 00:09:33.100 --> 00:09:35.480 We're looking at the Tatra 20, a luxury car, 00:09:35.700 --> 00:09:38.659 the Renault 20, an executive hatchback, the Rover 00:09:38.659 --> 00:09:42.049 20, a series of midsize cars. and the Hillman 00:09:42.049 --> 00:09:45.129 20, an entire series of 20 horsepower executive 00:09:45.129 --> 00:09:48.190 cars. It's a very specific trend. It really is. 00:09:48.549 --> 00:09:51.110 Naming a car a Renault 20 feels entirely different 00:09:51.110 --> 00:09:53.830 from naming a car a Mustang, which evokes an 00:09:53.830 --> 00:09:56.750 untamed horse or an Odyssey, which evokes an 00:09:56.750 --> 00:09:59.509 epic journey. Oh, absolutely. So I have to ask. 00:09:59.740 --> 00:10:02.259 Does slapping a 20 on a luxury car give it an 00:10:02.259 --> 00:10:04.860 air of importance, or is it actually the ultimate 00:10:04.860 --> 00:10:07.820 blank canvas, like a number so neutral that the 00:10:07.820 --> 00:10:09.879 vehicle just speaks for itself? This raises an 00:10:09.879 --> 00:10:12.539 important question about how we communicate status, 00:10:13.100 --> 00:10:15.279 because in the art world, 20 is overflowing with 00:10:15.279 --> 00:10:17.460 emotional resonance, like we talked about. But 00:10:17.460 --> 00:10:20.279 in engineering, it becomes a marker of raw capability. 00:10:20.519 --> 00:10:22.740 OK, unpack that capability part. Think about 00:10:22.740 --> 00:10:25.820 the historical context of the Hillman 20. In 00:10:25.820 --> 00:10:28.360 the early days of automotive engineering, we 00:10:28.360 --> 00:10:31.179 were transitioning from literal horses to combustion 00:10:31.179 --> 00:10:34.529 engines. Horsepower was the ultimate objective 00:10:34.529 --> 00:10:37.710 metric of luxury and capability. Oh, so you didn't 00:10:37.710 --> 00:10:40.450 need a poetic name like Mustang because the raw 00:10:40.450 --> 00:10:43.230 output of a 20 horsepower engine was the entire 00:10:43.230 --> 00:10:46.029 selling point. Exactly. It communicated status 00:10:46.029 --> 00:10:48.350 through mathematics rather than poetry. It was 00:10:48.350 --> 00:10:51.929 a very specific claim to competence. A 20 horsepower 00:10:51.929 --> 00:10:55.250 engine wasn't a tiny, sputtering starter engine. 00:10:55.330 --> 00:10:57.769 And it wasn't a massive unwieldy racing block 00:10:57.769 --> 00:10:59.889 either. It was solid. It was executive. It was 00:10:59.889 --> 00:11:02.240 undeniable. So no, it isn't a blank canvas at 00:11:02.240 --> 00:11:04.559 all. It's a metric of power that transcends language 00:11:04.559 --> 00:11:06.980 barriers. A French consumer buying a Renault 00:11:06.980 --> 00:11:09.779 and a British consumer buying a Rover both inherently 00:11:09.779 --> 00:11:12.100 understand the mathematical weight of that designation. 00:11:12.240 --> 00:11:14.659 And to facilitate the movement of all those executive 00:11:14.659 --> 00:11:17.440 cars, you need infrastructure. We see the exact 00:11:17.440 --> 00:11:19.860 same logic applied to global networks. Oh, totally. 00:11:20.320 --> 00:11:22.600 The source points out that 20 is the international 00:11:22.600 --> 00:11:25.000 dialing code for Egypt. And there's an entire 00:11:25.000 --> 00:11:27.299 section dedicated to a list of highways, number 00:11:27.299 --> 00:11:29.620 20. Not to mention the financial infrastructure, 00:11:29.679 --> 00:11:32.519 like the $20 bill. in the 20 -pence piece. To 00:11:32.519 --> 00:11:34.799 connect millions of people across continents, 00:11:35.019 --> 00:11:37.779 you cannot rely on abstract concepts. You need 00:11:37.779 --> 00:11:40.480 a rigidly defined system. The number becomes 00:11:40.480 --> 00:11:43.639 a vital load -bearing node in the global network 00:11:43.639 --> 00:11:46.100 of telecommunications, transit, and commerce. 00:11:46.539 --> 00:11:48.940 It ensures that a phone call, routed halfway 00:11:48.940 --> 00:11:52.200 across the world, lands precisely in Egypt and 00:11:52.200 --> 00:11:54.600 nowhere else. And it ensures that freight moving 00:11:54.600 --> 00:11:57.019 across a continent stays on the correct highway 00:11:57.019 --> 00:12:00.139 path. Without that standardized unit of 20 in 00:12:00.139 --> 00:12:03.159 our currency, local and global economies would 00:12:03.159 --> 00:12:05.840 lack a crucial intermediate medium of exchange. 00:12:06.259 --> 00:12:08.919 It's really a workhorse number. We are back to 00:12:08.919 --> 00:12:11.940 the scaffolding. Only this time, it isn't the 00:12:11.940 --> 00:12:14.299 chronological scaffolding of human history or 00:12:14.299 --> 00:12:16.840 the microscopic scaffolding of the bones in our 00:12:16.840 --> 00:12:18.840 bodies. Right, it's much more literal this time. 00:12:18.960 --> 00:12:21.580 It is the physical steel and wire scaffolding 00:12:21.580 --> 00:12:24.200 of our modern civilization. The highways, the 00:12:24.200 --> 00:12:26.360 phone lines, the currency, the cars moving between 00:12:26.360 --> 00:12:29.019 them. It is the unseen architecture of daily 00:12:29.019 --> 00:12:32.480 life. The disambiguation page we are analyzing 00:12:32.480 --> 00:12:35.259 was designed merely to direct internet traffic 00:12:35.259 --> 00:12:37.759 from one topic to another. Yeah, just a web directory. 00:12:37.980 --> 00:12:40.600 But in doing so, it inadvertently mapped out 00:12:40.600 --> 00:12:43.440 the entire human condition. It really is staggering 00:12:43.440 --> 00:12:45.659 when you step back and look at it as a complete 00:12:45.659 --> 00:12:48.659 data set. For you, the listener, just think about 00:12:48.659 --> 00:12:50.679 the incredible territory we've covered today 00:12:50.679 --> 00:12:52.879 just by pulling at the thread of a single integer. 00:12:53.000 --> 00:12:55.159 We covered a lot of ground. We started at the 00:12:55.159 --> 00:12:57.980 literal foundations of physical reality, examining 00:12:57.980 --> 00:13:00.679 the calcium, hardening our teeth, and the cold 00:13:00.679 --> 00:13:03.500 rock of the Asteroid 20 miscellia tumbling through 00:13:03.500 --> 00:13:06.519 space. We explored the chronological scaffolding 00:13:06.519 --> 00:13:08.879 of human history, marking the passage of time 00:13:08.879 --> 00:13:12.539 from 20 BC to the cultural era of 2020. And we 00:13:12.539 --> 00:13:14.779 analyzed how that measurement of time dictates 00:13:14.779 --> 00:13:17.919 our cultural milestones. From the R &B victory 00:13:17.919 --> 00:13:21.100 laps of TLC and Boyz II Seba Men to the Filipina 00:13:21.100 --> 00:13:23.379 concerts of Regine Velasquez. And the coming 00:13:23.379 --> 00:13:25.480 of age anthems of South Korean pop groups like 00:13:25.480 --> 00:13:27.799 INSEE. We use this number as a flag of survival 00:13:27.799 --> 00:13:30.340 and a threshold of maturity in the arts. And 00:13:30.340 --> 00:13:32.879 finally, we glounded all that abstract emotion 00:13:32.879 --> 00:13:36.000 into the physical dirt and asphalt of our world. 00:13:36.440 --> 00:13:38.779 Surveyors naming a hamlet in Lincolnshire or 00:13:38.779 --> 00:13:41.840 a basin in California just detained the wilderness. 00:13:42.960 --> 00:13:45.500 Engineers building 20 horsepower luxury cars 00:13:45.500 --> 00:13:48.320 to project status through mathematics. Governments 00:13:48.320 --> 00:13:50.940 routing phone calls to Egypt and paving highways 00:13:50.940 --> 00:13:53.879 number 20 to connect us all. What seems like 00:13:53.879 --> 00:13:56.379 just a natural number? The one sitting quietly 00:13:56.379 --> 00:13:59.620 between 19 and 21 is actually a massive cross 00:13:59.620 --> 00:14:02.460 -section of how humans organize their reality. 00:14:03.120 --> 00:14:05.399 It's the ultimate filing cabinet for our existence. 00:14:05.720 --> 00:14:07.720 Numbers are never just cold mathematics. They 00:14:07.720 --> 00:14:10.720 are profoundly human tools, heavily imbued with 00:14:10.720 --> 00:14:13.399 our neurobiological desire to structure, celebrate, 00:14:13.580 --> 00:14:15.799 and navigate the vast universe we find ourselves 00:14:15.799 --> 00:14:18.580 inhabiting. Which leaves us with one final lingering 00:14:18.580 --> 00:14:21.450 thought to mull over. We've seen how humans instinctively 00:14:21.450 --> 00:14:24.289 use the number 20 to signify maturity, legacy, 00:14:24.529 --> 00:14:26.889 luxury, and foundational structures. Yes, exactly. 00:14:26.970 --> 00:14:29.250 But as medical science advances and human lifespans 00:14:29.250 --> 00:14:31.909 continue to increase, our relationship with time 00:14:31.909 --> 00:14:33.549 is going to fundamentally change. Oh, without 00:14:33.549 --> 00:14:37.309 a doubt. If living to 120 or 150 becomes the 00:14:37.309 --> 00:14:40.090 standard human experience, what happens to our 00:14:40.090 --> 00:14:43.110 cultural psychology when 20 becomes just a minor, 00:14:43.169 --> 00:14:46.009 insignificant blip on a much longer timeline? 00:14:46.190 --> 00:14:49.070 That is a really fascinating provocation. If 00:14:49.070 --> 00:14:52.610 a career spans eight decades, does a 20th anniversary 00:14:52.610 --> 00:14:55.570 album still carry that same heavy weight of survival? 00:14:55.909 --> 00:14:58.350 Exactly. Does turning 20 still feel like stepping 00:14:58.350 --> 00:15:00.789 into true adulthood, or is it just an extended 00:15:00.789 --> 00:15:03.570 childhood? Well, we need to find an entirely 00:15:03.570 --> 00:15:06.649 new foundational number to anchor our human identity. 00:15:07.070 --> 00:15:09.350 Because when 20 is no longer a massive milestone, 00:15:09.789 --> 00:15:12.110 the entire shape of our cultural filing cabinet 00:15:12.110 --> 00:15:14.429 is going to warp. It really will. So the next 00:15:14.429 --> 00:15:16.169 time you encounter this number out in the wild, 00:15:16.490 --> 00:15:19.070 whether you are handing a $20 bill to a barista 00:15:19.070 --> 00:15:21.610 merging onto Highway 20 or listening to a band 00:15:21.610 --> 00:15:24.149 celebrate their 20th year together, remember 00:15:24.149 --> 00:15:26.570 the incredible weight it carries. Remember that 00:15:26.570 --> 00:15:28.929 a single, simple label is currently holding up 00:15:28.929 --> 00:15:31.730 the weight of our bones, our asteroids, our history 00:15:31.730 --> 00:15:34.049 and our culture all at the exact same time.