[ExI] Another multiverse article

BillK pharos at gmail.com
Sun Nov 19 14:14:16 UTC 2023

Many physicists assume we must live in a multiverse – but their basic
maths may be wrong
Published: November 9, 2023
Philip Goff, Associate Professor of Philosophy, Durham University.


Note: Discussing multiple universes — NOT quantum-splitting infinite universes.

One of the most startling scientific discoveries of recent decades is
that physics appears to be fine-tuned for life. This means that for
life to be possible, certain numbers in physics had to fall within a
certain, very narrow range.

The most popular explanation for the fine-tuning of physics is that we
live in one universe among a multiverse. If enough people buy lottery
tickets, it becomes probable that somebody is going to have the right
numbers to win. Likewise, if there are enough universes, with
different numbers in their physics, it becomes likely that some
universe is going to have the right numbers for life.

For a long time, this seemed to me the most plausible explanation of
fine-tuning. However, experts in the mathematics of probability have
identified the inference from fine-tuning to a multiverse as an
instance of fallacious reasoning – something I explore in my new book,
"Why? The Purpose of the Universe".
Specifically, the charge is that multiverse theorists commit what’s
called the inverse gambler’s fallacy.


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