RE: Actual Infinity in Reality?
February 23, 2018 at 9:12 pm
(This post was last modified: February 23, 2018 at 9:13 pm by polymath257.)
While I do not have a PhD in physics, I do have one in math and have taken the PhD qualifying exams in physics (and passed them the first time). I have about 60 hours of graduate physics classes under my belt. I haven't done a dissertation in physics, however.
No physicist that I have ever talked to has any qualms with either an infinite time into the past (or future) or an infinite amount of space, at least on the theoretical level. What happens in realty has to be determined through observation, however. But an infinite time or infinite space isn't a 'metaphysical' issue for working physicists. If anything, this goes double for cosmologists (which was the specialty I was going for before I stopped).
No physicist that I have ever talked to has any qualms with either an infinite time into the past (or future) or an infinite amount of space, at least on the theoretical level. What happens in realty has to be determined through observation, however. But an infinite time or infinite space isn't a 'metaphysical' issue for working physicists. If anything, this goes double for cosmologists (which was the specialty I was going for before I stopped).
