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Alberti_Devoveo
Guest
I hope you did not spend too much time on this (or scrolling through my posts to try ‘busting’ me on something). Also, this might have been a bit easier to follow the conversation had you used the little “Quote” button on the bottom right of the post.“for one thing, it has changed the definition of ‘nothing’ to the point where it is actually an extant something, but unstable”
Sair
“No quantum mechanics textbook I have ever read (and, being a physicist, that number is somewhat large) has suggested that the “definition of nothing” has changed due to its influence–this sounds more like New Age interpretations of quantum physics than actual science. Could you please provide a credible textbook (and not a New Age book) that states this? “
Alberti Devoveo ( post 25)
scientificamerican.com/article.cfm?id=something-from-nothing-vacuum-can-yield-flashes-of-light
tierneylab.blogs.nytimes.com/2009/06/12/the-physics-of-nothing/
nytimes.com/2012/02/21/science/space/cosmologists-try-to-explain-a-universe-springing-from-nothing.html?_r=0
thenational.ae/news/uae-news/science/something-from-nothing-is-a-quantum-possibility
newscientist.com/blogs/nstv/2011/07/how-the-universe-appeared-from-nothing.html
"As Guth has remarked, “It is said that there’s no such thing as a free lunch. But the universe is the ultimate free lunch.”
Stephen Hawking
First, are any of those textbooks?
Second, are any of those links citing that ‘nothing’ has changed its definition? Or are they doing the normal thing of assuming vacuum==nothing (which (a) is not true and (b) is often done by physicists)?
Third, virtual particles are not particles, they are disturbances in electric fields (which are definitely not nothing).
Fourth, several of these articles are saying that the pre-Big Bang was really ‘nothing’ but actually had enough stuff for the Heisenberg uncertainty principle to matter–last I checked, the HUP required not-nothing to even be valid.
Fifth, the vacuum energy these articles cite is one of the biggest blunders in modern physics. I do not trust any person who puts merit into vacuum energy being ‘the solution’ to the “universe from nothing” problem.
Sixth, a field is not nothing. Thus, the Casimir effect is nothing ‘particles from literally nowhere’ as one of the links suggest; the particles come from the field.