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Investment Strategies / Falling Knives
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Author: onepoorguy   😊 😞
Number: of 759 
Subject: Re: OT: what does an expanding universe mean?
Date: 04/13/2024 5:07 PM
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"Nothing" is a very dicey term. A lot of discussion about Krauss' book "A Universe from Nothing" dealt with how Krauss defined "nothing", for example. It is very important to define that term before using it.

Can you imagine true "nothing"? As in, not even space-time? The quantum field (from which vacuum fluctuations arise)? I don't think the human mind can really comprehend absolute nothingness. We always have to visualize it against something we can conceive (like "take a box with nothing in it, not even atoms"...but there are still quantum fields in it, possibly gravity waves traveling through it, etc). I'm out of touch with the latest thinking on this, but there was considerable debate at one time that there was at least quantum fields, even if space-time had not yet popped into existence (at least the space-time we are familiar with...there is still the hypothetical multiverse).

I find the other poster to be very poetic, but sometimes not clear in what he means with some of his terms. I notice a lot of references to "experience" and "experiential", but that implies (at least to me) that somehow our experience of the universe is more than just our experience of the universe. Which further implies we're more important than just another species on an tiny planet orbiting an ordinary star, in an unextraordinary galaxy, that is part of just one of many clusters and superclusters...you get the idea...
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