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Old 11-22-2017, 08:24 PM
 
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^^^^^^ Thank you for the additional input Eric, fascinating stuff. Trying to take it all in, the massive scale of things combined with intelligent design and statistical probabilities, etc. Lots to ponder....
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Old 01-20-2018, 03:22 AM
 
1,337 posts, read 844,442 times
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Originally Posted by Milky Way Resident View Post
Is it possible that the Multiverse theory is entirely non falsifiable? How do we prove the existence of another universe if it exists beyond the boundaries of our own space-time?
The multiverse theory is better classified as metaphysics rather than science, because it rests heavily on inferences to unobservables. In this case, to processes beyond the boundaries of space-time, as you correctly point out.

However, it is falsifiable, because it rests partly on empirical observations.

One could argue that quantum mechanics (including some formulations of the Boltzmann Brain hypothesis) disproves it, for example.



There's not much to falsify, though, because the whole theory is speculative to the point of being fanciful. I doubt many specialists would consider the evidence presented for it in the OP to be very convincing.

The main reason why it gets so much coverage is because, once probability theorists started to get involved in the subject, naturalist objections against arguments for fine-tuning started running into problems, as pointed out in the video in post #2.

As that started to become apparent, they retreated to various 'inferences to the best explanation' to undergird their world view. Out of these, only the multiverse theory turned out to be remotely cogent.
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Old 01-20-2018, 05:42 PM
 
Location: Montreal
741 posts, read 875,518 times
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Quote:
Originally Posted by Hightower72 View Post
The multiverse theory is better classified as metaphysics rather than science, because it rests heavily on inferences to unobservables. In this case, to processes beyond the boundaries of space-time, as you correctly point out.

However, it is falsifiable, because it rests partly on empirical observations.

One could argue that quantum mechanics (including some formulations of the Boltzmann Brain hypothesis) disproves it, for example.



There's not much to falsify, though, because the whole theory is speculative to the point of being fanciful. I doubt many specialists would consider the evidence presented for it in the OP to be very convincing.

The main reason why it gets so much coverage is because, once probability theorists started to get involved in the subject, naturalist objections against arguments for fine-tuning started running into problems, as pointed out in the video in post #2.

As that started to become apparent, they retreated to various 'inferences to the best explanation' to undergird their world view. Out of these, only the multiverse theory turned out to be remotely cogent.
If that's so, then I guess that alternate histories (e.g. the South winning the Civil War, or Hillary winning the 2016 election) taking place in parallel universes are metaphysical more than scientific unless proven otherwise?!
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Old 01-24-2018, 02:39 AM
 
1,337 posts, read 844,442 times
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Originally Posted by yofie View Post
If that's so, then I guess that alternate histories (e.g. the South winning the Civil War, or Hillary winning the 2016 election) taking place in parallel universes are metaphysical more than scientific unless proven otherwise?!
Are you missing Quantum Leap like I am?



At this moment right now, we don't really have the evidence to substantiate ideas like alternate timelines or parallel universes.

It's also worth saying, not all metaphysics is speculative. As in science, some metaphysics is based on sound evidence and arguments, some ideas are hypothetical, some are assumptions. Without metaphysical rules like the Causal Principle, science would not only be impossible, we would never have developed the scientific method in the first place.

The problem is that much of contemporary cosmology, theoretical physics, even geology and parts of biology have become permeated with metaphysical ideas that are pure assumptions. If even one of these is proven to be false, it would probably undo most (if not all) existing theories of the origins of life, the universe and everything.
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