Can you really imagine them crossing at different times? They start walking at the same time (7 a.m.). Regardless on what time they arrive, they necessarily cross at the same time (I mean, the same hour, different days). "Crossing" means "being at the same time going in opposite directions"

He's a child molester, too:

Also, Egan's stories in Axiomatic are based on awesome ideas.

As a postdoc philosopher, I also have strong opinions about philosophy. But what exactly are you asking for, when you say "evidence"? What kind of evidence would you consider as a valid one? A list of references that show that mainstream philosophers actually deal with the issues listed? A statistical report on how…