of course he can't, but atleast he doesn't fudge and say that some other unexplained being zapped us from a steaming pile of mud.
i don't think there is anything outside the universe, per se... to my understanding the universe is like a salad.... there are things in it like tomatos and lettuce... they are essentially the salad, but the space between them (air) is not the salad....
as i choose to understand it, everything is part of the universe...
you, me, the earth, a meteor... but the void space between earth and mars is not part of the universe... so to me, when it expands, it's just the distance between the furthest objects increasing..
ie if you were to just keep going straight out and out until you passed EVERYTHING, you'd be making the universe grow.
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In the end we are but wisps
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