[paulvs]

When you reach for your phone, there's always a time when your hand is only halfway there, so theoretically, it'll never get there (Zeno's paradox). Since we know from practice that it is possible to grab your phone, the Great Computational Machine that runs the universe must be using floating-point numbers with a finite precision that round to the nearest whole integer when your hand is about to arrive.

Clearly, proof that we live inside a computer simulation ;)