If you were to travel back in time and father a child with your mother, the resulting baby should have half of your genetic material and half of your mother's genetic material. But how can you have only half of your own full genetic material and still be yourself?

So, either time travel to the past is not possible, or you couldn't be your own father no matter how hard you tried, or the resulting baby would not be you, but someone else.

Simple logic, based on biological facts. Who would think that biology could impact time travel?

(For the record, I am not the person who came up with this argument in the first place. I read it in a book several years ago, but I can't remember the title nor the author at the moment)

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And can someone tell me WHY I have so much trouble logging in?????

That darn BBC dramatization will always stick with me because of

a.) the completely batshit costumes the players wore, and

b.) the fact that everyone called him Ooeeeeeeeedipusssssssss.....

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