Is Global Warming a Hoax?

[wufwugy]

The idea I'm getting at is that for two and two to be five, it might necessarily mean that they aren't two. Perhaps my analogy is no good.

[Poopadoop]

Let's try a different tack:

How do you know there's such a thing as gravity? Because when you jump up you come down again (and any other number of reasons). And it's been consistently that way for as long as anyone knows.

Now, how do you know there will still be gravity tomorrow?