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Jan9-05, 03:30 PM
Nope. We can experience matter. You can't experience energy directly, only its effects on things. What determines validity in science is that experiential component. Matter is not merely a conceptual contrivance as math is.
You cannot experience matter directly either, only its effects on things.
I meant if matter had never existed. The photon has been radiated by matter.
Perhaps not. Aren't there photons which have been around since the big bang without ever being matter?