>>Just remember Arthur Clarke's words: "Any sufficiently advanced technology is indistinguishable from magic". In you were transported back to ancient times, given today's knowledge and technology, almost any gadget you could demonstrate could label you as a deity with supernatural powers. Does that prove you are a God? No.
>>But they would believe it.
>
>OTOH, if your time warp machine had a faulty Pentium chip in it, and you landed in a wrong century, you'd be burned as a witch...

A little OT, but do you remember that scene in "Somewhere in Time" staring Christopher Reeves? A college senior is giving his final play in college, and after the curtin call a little old lady comes up to him, hands him a pocket time piece and says "Come back to me!".

Five years later he has writers block and goes on vacation. At a hotel he sees a portrait of a beautiful lady and falls in love with her. In doing research he discovers she is that little old lady who gave him the watch five years before. So, he hops back in time and in gives the watch back to her.

This points out the particle paradox of time travel into the past. Where did the watch come from?