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Change My Mind
Alex Buxeda
What is Trust? w/ Karl Friston
MAR 18, 202661 MIN
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Description
I am joined by neuroscientist Karl Friston to discuss, from first principles, what trust is.
The trust we put in others, and in our institutions, is a sociological feature emergent from biology. It is here that predictions first appear.
This conversation inspired an article we co-wrote:
https://schweizermonat.ch/trust-is-a-law-of-nature/
0:00 What is trust, in active inference terms?
1:07 Trust in your own future: planning as inference
2:16 Confidence, precision, and the shape of a belief
3:45 Two ways to minimize surprise: seeking info vs. avoiding surprise
5:48 Epistemic trust: choosing where to get your news
6:24 Scale invariance: from eye movements to which institutions you trust
8:20 Trust as a meta-judgment of your past predictions
9:11 The statistician's view: estimating risk, not just reward
10:56 When second-order inference fails: hallucinations and neglect
12:50 Delusional institutions: the same mechanics in markets and geopolitics
13:45 Precision as attention: what you trust is what you attend to
14:56 Rediscovering natural selection from a different angle
17:20 Bayesian model selection is nature's way of selecting phenotypes
19:58 Why the free energy principle complies with itself
21:14 Donald Hoffman, mortal computation, and neuronal chauvinism
22:31 We are the substrate: predicting ourselves into existence
24:07 Everything is a hypothesis, including time and the self
25:10 Do we see truth? What can be ignored isn't true
26:13 There is no truth, only the best inference for me
27:33 Synchronization of chaos: coupling your brain to the world
28:45 A joint free energy solution: becoming mutually predictable
29:38 Aligned interests: why you trust the table, your liver, and me
31:52 Negative valence: trusting that a lion wants to eat you
32:47 Shorting the BBC: the cost of distrust
33:33 Fake news, epistemic trust, and the pillars of autocracy
34:15 Sharing a generative model: how we become predictable to each other
35:47 Defining yourself by the states you refuse to occupy
38:04 Is this source generated by someone like me?
38:36 Why echo chambers are Bayes-optimal until communities open
39:54 Too many choices: why it's awful for young people now
40:58 Friston: no phone, no social media, no awful uncertainty
41:15 Australia's under-16 social media ban, seen mathematically
42:06 Information like capital: who should handle how much
42:48 The pathology: social media attracts more capital when you lose
43:28 Markets are grown up, social media is pre-adolescent
44:11 Science as selection: theories as surviving hypotheses
44:35 Is religion "true"? The fitness of a simple generative model
46:03 Narrowing choice: why fewer options relieves angst
47:05 "You are your own existence proof"
48:07 Collapsing is and ought: first survive, then philosophize
49:08 "I am, therefore I think"
50:23 The relational aspect: no standalone measure of goodness
53:30 Hardware and software differ only in speed of change
54:33 The renormalization group: same rules at every scale
55:07 Separation of temporal scales: growing slow, learning fast
56:15 What we inherit is learnability, not a finished world model
57:40 Why foolishness was selected for: the reckless years
59:21 "Did evolution fool us?" The value of unsophisticated agents
1:00:24 Variance creates arbitrage: Pinker and common knowledge
1:01:25 Closing thoughts

