Evolutionary theorist Oliver Curry predicts that man will have split into two races within 100,000 years. Apparently, he has read the Time Machine by H. G. Wells.
Bad Science has more to say about the good doctor.
Speaking of time machines…try this idle thought on for size. A time machine will never be invented (note this is different from saying it’s not possible). If it is going to happen, there would have been some time machine user with a desire to visit various eras of the past and make him/herself known to its inhabitants. So we would already know about it.
(Yeah, I’m waiting for the hole-poking.)