[samtheman]

Guth's idea can't be tested so it's not a true scientific theory. We can't perceive, measure or detect the existence of anything outside our own universe, so we might as well consider this one to be the only one. That's why I called it a concept, not a theory. But I like it.

[AMDG&BVMH]

"Guth's idea can't be tested so it's not a true scientific theory. "

Very true.

I would call it a philosophical concept. So it doesn't get confused with science. ;)