how? 50,000 years later everything will be high tech beyond our imagination. the reason why things are presvered from a thousand or 2 thousand years ago are by books or things that are written down, therefore no matter how high-tech our society will advance we can still understand everything from that certain time period. the thing is that now we are having problems prevserving our current history. how are civilization 50,000 years later going to read a CD? how can our books perserve for 50,000 years?

It's physically impossible for you to lick your elbow when intact to your miserable body.