We refer to non-material things all the time. That's certainly evidence. Physics can't even quite define "matter" to begin with, so it's not even clear what you're attempting to "exclude." As it stands, you might as well make a claim like "material objects occupy space and time and have mass." After all, if you can't, in principle, hold it in your hand and feel its weight, it can't be real." "What about light, then? Photons have no mass." "Well, photons don't really exist. They're just a manner of speaking." "Unlike, say, electrons?" "Yes. Electrons exist." "Why?" "Because they occupy space-time and have mass." This should strike you as obviously silly. Try this: provide a definition of "material," and a definition of "existence," and we'll see what happens... |