How do we know the world wasn't created 5 minutes ago?
I'm currently having to write an essay on this question, and working from the assumption that it is indeed logically tenable that the world is only five minutes old, as Russell pointed out in his five-minute hypothesis.
Though the real stumbling block for me is how we actually 'know' otherwise.
Through the logic of Karl Popper, I identified the subject as purely philosophical - and so, it is possible to revise the traditional epistemology and criteria of knowing to tackle this question, but I am still unsure whether one is ever able to claim knowledge contrary to the five-minute hypothesis (the problems of which I'm sure you're all aware, it being non-falsifiable and all).
Basically, I'm happy to accept any coherent argument for or against knowing whether the five-minute hypothesis is true - just anything!!