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| Christ crucified, wood carving by Manuel Alfonseca Santana |
If time travel were possible, the greatest incentive for travelers would be to witness firsthand famous events of the past, such as the assassination of Julius Caesar and many others. The fact that we have no record of the presence of strangers in any of these cases is a significant argument against the feasibility of time travel.
There is no doubt that one of these events, perhaps
the most famous of all, would be the Crucifixion of Christ. If time travel were possible, there should have
been an avalanche of visitors from future times at Golgotha to witness the
most important event in the history of humankind.
In fact, this idea has been used in science fiction literature. In a novella titled There Will Be Time, Poul Anderson has his protagonist travel to Jerusalem on the day of the Crucifixion to witness Christ's death. Upon arriving, he discovers a large crowd, almost all of whom are time travelers.