Physics to God - Infinities and Measures - S2:E9

Jan 19 2025 22 mins 15

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In previous episodes, we discussed the multiverse's sole "prediction" that we are typical
observers in a typical universe. However, this ignored the major problem that it doesn't seem
possible for an infinite varied multiverse to use probabilities to make any prediction whatsoever
because there are an infinite number of copies of every possible universe!

To get around this problem, multiverse scientists use something called measures to compute
probabilities in an infinite multiverse and then determine what a typical universe looks like. They
thereby attempt to rescue multiverse theory from the fatal flaws of a naive multiverse, but end
up running directly into the measure problem we'll discuss next time.

Timestamps:

0:00 - Opening

0:57 - Introduction

1:50 - From a Naive Multiverse to Measures

5:07 - The Problem of Infinities and Probabilities

7:50 -Measures

13:39 - True and False Predictions

16:48 - The Boltzmann Brain Measure

21:03 - Outro

Get essay versions of all episodes in Season 1: Intelligent Cause and Season 2: Analyzing & Rejecting Multiverse

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