Halvy, do you know the joke about the mathematician, the engineer, and the beautiful woman at the other end of the tunnel?

The two gentlemen are both told they can only travel half the remaining distance to get to the lady at a time, but they can try as many times as they want.

The mathematician gave up immediately, saying its mathematically impossible to ever reach her!

The engineer took off at a sprint, agreeing, but adding, "i can get close enough for all practical purposes!"

So...