A tale of two doors

Over at Pharyngula, P.Z. Myers has a tale of two doors, one of them flimsy and easy to open, and the other, sturdy and tough. The first one is guarded by Guardian A, and the second by Guardian B. This is how each describes what's behind his door:

Guardian A: "Joy and delight, an eternal life of perfect happiness, an end to doors and constant travelingÂ…and all you have to do is turn that little knob, and believe."

Guardian B: "Knowledge. Hard work. Interesting ideas. And doors -— many more doors, each one harder than the next, and no end to them in sight. Clever people, all working together to open more doors. It's a whole world, a good but complicated place."

Fascinating stuff. Read the whole thing here.