When humanity finally grabbed control of time and propelled itself backwards to indulge in physical anachronism, they appeared. They were blindingly brilliant, and they stopped humanity with a push to the chest.
"Are you... God?" The humans asked, suddenly wishing they’d solved world hunger instead of creating time travel.
"No, no. Well, part of what you call 'God.' But you are, too. We're simply a better part."
"What part are we?"
"Do you know what toenails are?"
"We are not God's toenails!"
"No, no. You're the stuff that turns them yellow."