On 8/27/2019 3:56 PM, Bruce Kellett wrote:
On Tue, Aug 27, 2019 at 2:52 AM Alan Grayson <[email protected]
<mailto:[email protected]>> wrote:
Is the existence of the quantum foam, with virtual particles
incessantly coming into existence and being annihilated,
generally accepted? If I recall correctly, Bruce was extremely
doubtful, claiming it's based on reifying, or making concrete,
terms in an approximation method which are alleged to be
off-shell particles. AG
See the post I have just made on an article by Arnold Neumaier:
https://www.physicsforums.com/insights/vacuum-fluctuation-myth/
Bruce
One thing I find interesting about modern physics is how very different
mathematical structures can be used for the same physics: virtual
particles or Green's functions, Hilbert space or path integrals,
particles or fields, curvature of spacetime or entropy gradient,... You
would think this would give pause to those who want to reify the
ontology of the mathematics and assert what's really real.
Brent
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