TEH TIEM PARADUCKS:
eef it iz possumble to go bak in tiem, tehn eny efeks of tiem traval to teh pahst is r alreddy bn in okkurense, so ther4, u canot keel yurself in teh past, bcuz then u woodnt be aliv to go bak and keel yurself. Also, if travln bak in tiem is possumble, then eet has alreddy occured in teh footur an so teh pahst mey hav bean chenged, but becuz eet haz, we donut no it deed, so we is r feelin teh effeks of tiem travl alreddy, and eef we were to go bak, no mattar wat we duz, eet was alreddy doomed to happenz, so nuthing chenges in teh present.