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Within Reason

#102 David Deutsch - You're Not Smarter Than a Caveman

Within Reason

Alex J O'Connor

Religion, Morality, Ethics, Society & Culture, Cosmicskeptic, Religion & Spirituality, Philosophy

4.91.8K Ratings

🗓️ 7 April 2025

⏱️ 115 minutes

🧾️ Download transcript

Summary

David Deutsch is a British physicist at the University of Oxford, often described as the "father of quantum computing". He is a visiting professor in the Department of Atomic and Laser Physics at the Centre for Quantum Computation in the Clarendon Laboratory of the University of Oxford. (Wikipedia)

Transcript

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0:00.0

Are people, human beings, more clever today than they were 100,000 years ago?

0:09.3

Of course, we have virtually no evidence about that,

0:13.9

but going from first principles and from my feeling of what the situation has been,

0:25.0

definitely not.

0:26.0

They were definitely our equals in mental capacity

0:33.2

and in anything physiological to do with thought or understanding, they were our equals.

0:43.7

The difference between us and them is culture and technology.

0:50.2

So those are beyond comparison different today, but they have only been beyond comparison

0:58.0

different for a few hundred years, like since the Enlightenment.

1:02.0

Before that, people were much like they had been in prehistoric times.

1:09.0

Well, this is the interesting thing.

1:12.0

A lot of people will look to our ancestors and implicitly assume that they must have been pretty

1:18.7

stupid.

1:19.3

I mean, these fools running around just about working out how to use fire, didn't invent

1:24.6

the wheel for thousands, hundreds of thousands of years, they must have been

1:28.8

pretty stupid. The question is, if our brain structures are essentially the same, evolution works

1:36.4

on an unfathomably sort of long stretch of time, we haven't had enough time for our brains to

1:43.6

significantly evolve since

1:45.2

you know, 10,000 years ago, 50,000 years ago. Quite so, probably more. Yeah.

1:50.5

Why then, in the last few hundred years, in particular, but I suppose in the last few thousand

1:57.2

years, really, if we're talking about society, have we managed to go from these

2:01.8

helpless apes wandering around and about the middle of the food chain to just dominating the

...

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