Time begins when matter relates to a absolute co-ordinate. Like in a radio wave, but you have gravitational wave which propagates a time line, followed by a gravitional wave. Like there is only one direction of rotation, its relative to which side its perceived. In the big bang time began at the epic center, which all matter relates. The waves ripple when they contact matter.
If one assumes that time is a rotating entity, then one could assume that time travel is possible, most likely propelled by some type of energy. This energy could be modulated into a signal that could be picked up at any point those in control of the vessel desire.
Thus, as an experiment which would prove but not necessarily disprove time travel with a vessel such as I have described, I predict that another post will be made to this thread in 24 hours from 8:51 AM Eastern Standard Time on February 17 2011, with a margin of error less than or equal to two hours and containing relevant information.
Naturally, if this doesn't come to pass one could assume there were unforeseen circumstances as a result of some directive prohibiting the transmission of such signals. Either way, it will be interesting to see what is posted in or directly following that time period.