http://en.wikipedia.org/wiki/Time_travel#Theory, http://fimenet.8m.com/concepts.htm, http://www.brianbosak.com, http://www.crystalinks.com/timetravel.html, http://www.iep.utm.edu/timetrav,
http://science.howstuffworks.com/science-vs-myth/everyday-myths/time-travel.htm
http://en.wikipedia.org/wiki/Conspiracy_Theory_with_Jesse_Ventura#Season_three,
http://www.youtube.com/watch?v=EB_b46I7fgA, http://www.youtube.com/watch?v=9AsKmbF_J98,
http://www.trutv.com/shows/conspiracy_theory/index.html,
http://www.youtube.com/watch?v=NiVOhMzLEbE
A51 http://www.youtube.com/watch?v=Qkf48q0KGxo, http://www.youtube.com/watch?v=SnUC-mB5vis
