Those wacky MIT guys

From the Guardian:

One of the strongest arguments against time travel is that we are not overrun with curious tourists from the future. A university student in Boston plans to change that, by inviting budding Doctor Whos to the world's first time traveller convention this weekend.
The organiser, Amal Dorai - a masters student in electrical engineering and computer science at the Massachusetts Institute of Technology - aims to test the theory of time travel by inviting people from the future to the event.

Dorai says: "Of course, no time travellers doesn't rule out the possibility of time travel, they could have just decided not to come to our convention." Hmm - yeah. But it gets better.

Physicists believe some kind of time travel is theoretically possible, but it will take hundreds or even thousands of years to work out the technical details.
Concerned that people will have forgotten his convention by then, Mr Dorai is urging volunteers to publicise the event to future generations by carving the details into clay tablets and burying notices in time capsules. He has slipped invitations on long-lasting paper inside dozens of obscure books in the MIT and Harvard University libraries.