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PhysicsDilettante
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Frederick’s “Empty Nest” post reminded me of a thought that I have had on occasion. Perhaps it is essentially what Frederick’s post is getting at, I’m not sure. (Note: This is not intended to imply a theory but is simply meant as a question about what we know or don’t know.)
What is the evidence and / or theoretical basis for concluding that space and time (or spacetime) and normal energy and matter (and I suppose if they do exist dark energy and matter) all came into existence at the same instant and as part of the same process?
In other words, from our current knowledge, what precludes the possibility that space itself already existed and was expanding (even accelerating) prior to a "big bang” bringing the matter / energy of our observable universe into existence to be carried along with the already expanding space?
-PD
What is the evidence and / or theoretical basis for concluding that space and time (or spacetime) and normal energy and matter (and I suppose if they do exist dark energy and matter) all came into existence at the same instant and as part of the same process?
In other words, from our current knowledge, what precludes the possibility that space itself already existed and was expanding (even accelerating) prior to a "big bang” bringing the matter / energy of our observable universe into existence to be carried along with the already expanding space?
-PD