1
00:00:00,000 --> 00:00:03,400
Okay, I don't know, let's just see.

2
00:00:03,400 --> 00:00:04,800
Oh, I felt this one.

3
00:00:04,800 --> 00:00:09,120
Okay, this is from ScienceAlert.com, which I've never heard of before.

4
00:00:09,120 --> 00:00:11,240
And it's from January 12, 2024.

5
00:00:11,240 --> 00:00:16,360
Doesn't say who's written it, but it is co- Oh no, it's by humans.

6
00:00:16,360 --> 00:00:19,120
The opposite of deja vu is a thing.

7
00:00:19,120 --> 00:00:21,400
And it's even more uncanny.

8
00:00:21,400 --> 00:00:24,520
Our petition has a strange relationship with the mind.

9
00:00:24,520 --> 00:00:29,960
Take the experience of deja vu when you wrongly believe you have experienced a novel situation

10
00:00:29,960 --> 00:00:33,320
in the past, leaving us with a spooky sense of past...

11
00:00:33,320 --> 00:00:39,400
Well, that's presumptuous of them, making them think that we don't know that we've experienced this before.

12
00:00:39,400 --> 00:00:44,400
When you wrongly believe that that last sentence was a wild ride.

13
00:00:44,400 --> 00:00:47,880
Have you ever experienced a sense of pastness?

14
00:00:47,880 --> 00:00:49,440
It just kept going.

15
00:00:49,440 --> 00:00:50,720
I really like that.

16
00:00:50,720 --> 00:00:52,000
Huh, I'm remembering this.

17
00:00:52,000 --> 00:00:54,000
It's wrong, but I'm remembering it.

18
00:00:54,000 --> 00:00:57,600
Yes, I'm experiencing pastness.

19
00:00:57,600 --> 00:01:03,720
But we have discovered that deja vu is actually a window into the workings of our memory system.

20
00:01:03,720 --> 00:01:05,200
What is this website?

21
00:01:05,200 --> 00:01:11,200
Our research found that the phenomenon arises when the part of the brain which detects familiarity

22
00:01:11,200 --> 00:01:13,400
asynchronous with reality.

23
00:01:13,400 --> 00:01:16,840
Deja vu is the signal which alerts you to this weirdness.

24
00:01:16,840 --> 00:01:19,920
It is a type of fact checking for the memory system.

25
00:01:19,920 --> 00:01:23,600
Repetition can do something even more uncanny and unusual.

26
00:01:23,600 --> 00:01:26,280
The opposite of deja vu is jamais vu.

27
00:01:26,280 --> 00:01:31,320
When something you know to be familiar feels unreal or novel in some way.

28
00:01:31,320 --> 00:01:37,440
In our recent research, which has just won an IG Nobel award for literature, we invest...

29
00:01:37,440 --> 00:01:38,280
Big Nobel.

30
00:01:38,280 --> 00:01:40,640
They're the offshoot of the Nobel Prize.

31
00:01:40,640 --> 00:01:43,400
They always have papers that they award prizes to.

32
00:01:43,400 --> 00:01:45,920
Wow, I'm learning so many new things in this article.

33
00:01:45,920 --> 00:01:49,200
We investigated the mechanism behind the phenomenon.

34
00:01:49,200 --> 00:01:55,040
Ja me vu may involve looking at a familiar face and finding it suddenly unusual or unknown.

35
00:01:55,040 --> 00:01:59,960
Musicians have it momentarily, losing their way in a very familiar passage of music.

36
00:01:59,960 --> 00:02:04,640
You may have had it going to a familiar place and becoming disoriented or seeing it with

37
00:02:04,640 --> 00:02:05,640
new eyes.

38
00:02:05,640 --> 00:02:09,960
Is that the same as like when you say a word over and over again and then it loses all meaning?

39
00:02:09,960 --> 00:02:10,960
I think so, yeah.

40
00:02:10,960 --> 00:02:12,240
It has to be.

41
00:02:12,240 --> 00:02:19,200
It's an experience which is even rarer than deja vu and perhaps even more unusual and unsettling.

42
00:02:19,200 --> 00:02:23,760
When you ask people to describe it in questionnaires about experiences in daily life, they give

43
00:02:23,760 --> 00:02:28,520
accounts like, well, writing in my exam, I write a word correctly like appetite, but I

44
00:02:28,520 --> 00:02:32,560
keep looking at the word over and over again because I have second thoughts that it might

45
00:02:32,560 --> 00:02:33,560
be wrong.

46
00:02:33,560 --> 00:02:34,560
Yeah.

47
00:02:34,560 --> 00:02:38,320
In daily life, it can be provoked by repetition or staring, but it needn't be.

48
00:02:38,320 --> 00:02:39,760
Yeah, okay, I get this.

49
00:02:39,760 --> 00:02:41,440
I've had this happen before.

50
00:02:41,440 --> 00:02:42,440
It's just what I said.

51
00:02:42,440 --> 00:02:45,400
If you say a word too much, then it loses all meaning.

52
00:02:45,400 --> 00:02:48,960
Or you know, going into a room and you're like, why the hell did I come into this room and

53
00:02:48,960 --> 00:02:49,960
then leaving?

54
00:02:49,960 --> 00:02:50,960
Yeah.

55
00:02:50,960 --> 00:02:51,960
Okay.

56
00:02:51,960 --> 00:02:53,560
Apparently that happens to be way too much.

57
00:02:53,560 --> 00:02:58,000
One of us, Akira, has had it driving on the motorway.

58
00:02:58,000 --> 00:03:05,560
Necessity necessities necessitating necessitating necessitating necessitating that he pull over

59
00:03:05,560 --> 00:03:10,320
on the hard shoulder to allow his unfamiliarity with the pedals and the steering wheel to

60
00:03:10,320 --> 00:03:11,320
reset.

61
00:03:11,320 --> 00:03:13,960
The wild is rare.

62
00:03:13,960 --> 00:03:17,000
Oh man, that's a Tim Robinson sketch.

63
00:03:17,000 --> 00:03:18,000
Is it?

64
00:03:18,000 --> 00:03:19,000
Oh yeah.

65
00:03:19,000 --> 00:03:20,400
Where he's like, do you even know how to drive?

66
00:03:20,400 --> 00:03:21,960
And he's like, no, I don't.

67
00:03:21,960 --> 00:03:23,760
I don't even are these things.

68
00:03:23,760 --> 00:03:25,120
Yeah, Jumevu.

69
00:03:25,120 --> 00:03:26,120
Yeah.

70
00:03:26,120 --> 00:03:32,080
We don't know much about Jumevu, but we guessed it would be pretty easy to induce in the laboratory.

71
00:03:32,080 --> 00:03:36,440
If you just ask someone to repeat something over and over again, they often find it becomes

72
00:03:36,440 --> 00:03:38,280
meaningless and confusing.

73
00:03:38,280 --> 00:03:41,480
This was the basic design of our experiments on Jumevu.

74
00:03:41,480 --> 00:03:47,360
In a first experiment, 94 undergraduates spent their time repeatedly writing the same word.

75
00:03:47,360 --> 00:03:51,840
They did it with 12 different words, which range from the commonplace such as door or

76
00:03:51,840 --> 00:03:54,040
less common such as sword.

77
00:03:54,040 --> 00:03:58,320
We asked participants to copy up the word as quickly as possible, but told them they

78
00:03:58,320 --> 00:04:03,680
were allowed to stop and gave them a few reasons why they might stop, including feeling peculiar,

79
00:04:03,680 --> 00:04:05,880
being bored or their hand hurt.

80
00:04:05,880 --> 00:04:07,280
Stopping because things are...

81
00:04:07,280 --> 00:04:09,960
I like that one.

82
00:04:09,960 --> 00:04:14,800
Stopping because things began to feel strange was the most common option chosen, with about

83
00:04:14,800 --> 00:04:20,040
70% stopping at least once for feeling something defined as Jumevu.

84
00:04:20,040 --> 00:04:25,520
This usually occurred after about one minute, 33 repetitions, and typically for familiar

85
00:04:25,520 --> 00:04:26,520
words.

86
00:04:26,520 --> 00:04:31,760
In a second experiment, we used only the word the, figuring that it was the most common.

87
00:04:31,760 --> 00:04:36,840
This time, 55% of people stopped writing for reasons consistent with our definition of

88
00:04:36,840 --> 00:04:40,960
Jumevu, but only after 27 repetitions.

89
00:04:40,960 --> 00:04:43,720
But nobody actually knows what the word me means.

90
00:04:43,720 --> 00:04:44,720
Like I don't.

91
00:04:44,720 --> 00:04:45,720
Do you?

92
00:04:45,720 --> 00:04:46,720
It's just there.

93
00:04:46,720 --> 00:04:47,720
No, it doesn't have meaning.

94
00:04:47,720 --> 00:04:49,280
Why do we even use that?

95
00:04:49,280 --> 00:04:51,560
I gotta take it out of my vocabulary.

96
00:04:51,560 --> 00:04:52,560
Makes no sense.

97
00:04:52,560 --> 00:04:54,560
You go fast now.

98
00:04:54,560 --> 00:05:00,160
People describe their experiences as ranging from they lose their meaning or the more you

99
00:05:00,160 --> 00:05:03,960
look at them, you seem to lose control of hands.

100
00:05:03,960 --> 00:05:06,080
I just lost control of my hand.

101
00:05:06,080 --> 00:05:07,080
I had to stop.

102
00:05:07,080 --> 00:05:09,360
To our favorite, it doesn't seem right.

103
00:05:09,360 --> 00:05:13,040
Almost looks like it's not really a word, but someone's tricked me into thinking it

104
00:05:13,040 --> 00:05:14,040
is.

105
00:05:14,040 --> 00:05:15,040
What?

106
00:05:15,040 --> 00:05:16,040
Someone sounds crazy.

107
00:05:16,040 --> 00:05:19,040
It took us around 15 years to write up and publish the scientific work.

108
00:05:19,040 --> 00:05:20,480
Well, that's a long time.

109
00:05:20,480 --> 00:05:25,880
In 2003, we were acting on a hunch that people would feel weird while repeatedly writing

110
00:05:25,880 --> 00:05:26,880
a word.

111
00:05:26,880 --> 00:05:30,520
This is just going, they're elaborating on something I feel they shouldn't at this

112
00:05:30,520 --> 00:05:31,520
point.

113
00:05:31,520 --> 00:05:34,880
Yes, it's almost as if they're repeating themselves so we lose what's going on in this

114
00:05:34,880 --> 00:05:35,880
story.

115
00:05:35,880 --> 00:05:36,880
Meaning.

116
00:05:36,880 --> 00:05:40,600
I just had noticed that the lines he had been asked to repeatedly write as punishment

117
00:05:40,600 --> 00:05:43,720
at secondary school made him feel strange as if they weren't real.

118
00:05:43,720 --> 00:05:44,720
I don't know.

119
00:05:44,720 --> 00:05:46,520
I think we went to be enough on this.

120
00:05:46,520 --> 00:05:51,240
That was kind of an interesting article, even though I want to, what was it?

121
00:05:51,240 --> 00:05:52,240
Ig Nobel.

122
00:05:52,240 --> 00:05:53,760
There's always fun stuff in there.

123
00:05:53,760 --> 00:05:55,560
They have different subcategories.

124
00:05:55,560 --> 00:05:56,560
They do it every year.

125
00:05:56,560 --> 00:05:59,120
Yeah, I would assume like the Nobel Prize, right?

126
00:05:59,120 --> 00:06:00,620
Yeah, exactly.

127
00:06:00,620 --> 00:06:04,320
And if we say that enough times, it'll lose all meaning.

128
00:06:04,320 --> 00:06:06,240
And I think that's good enough for a mini.

129
00:06:06,240 --> 00:06:07,360
Yeah, I think so too.

130
00:06:07,360 --> 00:06:11,880
I'm glad we have a word for that because I'm going to forget it when I need it, but

131
00:06:11,880 --> 00:06:14,200
it comes up more often than we would like.

132
00:06:14,200 --> 00:06:18,640
I think as we all get older, we do know there's a word so we can just say, there's a word

133
00:06:18,640 --> 00:06:20,880
for this and I can't remember what it is.

134
00:06:20,880 --> 00:06:24,280
And if you just keep saying it, it's going to completely lose its meaning.

135
00:06:24,280 --> 00:06:29,560
And my hands feeling like it's writing out a control, but this is happening and I know

136
00:06:29,560 --> 00:06:31,760
what it is, but that's all we need to know.

137
00:06:31,760 --> 00:06:32,760
All right.

138
00:06:32,760 --> 00:06:36,680
Well, in any event, hopefully you guys remember that you need to be here in 48 hours.

139
00:06:36,680 --> 00:06:37,680
That's non-negotiable.

140
00:06:37,680 --> 00:06:39,800
There are repercussions if you're not.

141
00:06:39,800 --> 00:06:41,720
So I guess you'll be here in 48 hours.

142
00:06:41,720 --> 00:07:09,720
Bye.