Or it could be an "agent" gaining information during the United States presidential election held in California in 1928(http://en.wikipedia.org/wiki/United_States_presidential_election_in_California,_1928), which leaded to the election of Herbert Hoover (http://en.wikipedia.org/wiki/Herbert_Hoover) which was in office during the 1929 crash...
do i "believe" in time travel, no. i can't even reach that hairy edge of "belief" let alone convicted. do i DISbelieve, yes. farfetched and soo removed from ordinary reality my bet placed that it's fantasy.
Of course Hawking makes me a drooling idiot on the subject and I might defer to his expertise but remember he said any alien intelligence visiting us would necessarily be hostile too. On such far flung issues though the footing becomes increasingly equal and how much more far flung can you get ...though I enjoy such pop science and I've a library filled with books i read decades ago on it I throw up my hands in awe of Lifes mystery. Don't twist my meaning around 180. I meant everyones take on time travel has its root perception in media. Its all we have to go on really.
I believe time travel is possible in the ways stephen hawking believed it was, but with him it isnt as much about being warped into a different time, as it was about slowing time enough for yourself that you could come back 100 years later and it would only be a year for you...... Wasnt hawkings version of time travel more about bending/slowing time for the traveller, then actually travelling in time, i.e. making 1 year for the traveller worth 100 years for someone on earth? I may have misunderstood his books but wasnt that what it was all about, provided you could travel close to the speed of light?
Here is another article for those of you who don't want to watch the video. http://www.foxnews.com/scitech/2010/10/27/time-traveler-spied-chaplin-film/
As we understand them currently. Mindboggling breakthroughs on occassion come via not accepting what is as absolute, but by stretching to the next level.
MQOOKIN: All laws of physics become undefined (impossible) when V=C (velocity = speed of light) -------------------- E = MCC IF E =.5MVV THEN .5MVV = MCC .5VV = CC V=C .5 = 1