The promise of time travel has long been one of the world's favorite scientific "what-ifs?" Hawking explores all the possibilities, warping the very fabric of time and space as he goes. From killing your grandfather to riding a black hole, we learn the pitfalls and the prospects for a technology that could quite literally, change everything.
Did You Know?
The invitation shown gives the time and date of the "Time Traveller" welcome reception as 12:00 UT (which is the same as noon, Grenwich Meridian Time, or Cambridge local time) on June 28, 2009. A grandfather clock is shown clicking second-by-second to the appointed hour... but every shot of the full clock face shows it at either 5:00 or a few minutes before, with the date indicator (a 31-day dial) indicating the 16th of the month. Apparently the clock was shot at a different time and on a different day as the announced party (and possibly was at a different location.) And it does not appear in any shots of Hawking at the party. (There is a fraction-of-a-second shot of a very different clock face reading 12:00)
Or maybe the time travelers showed up at the right day and time...but the film crew and Hawking were five hours late...and twelve days early? See more