If you were raised religious, you might have heard this biology "lesson" before: A student is handed a paper bag and a ball point pen. The teacher dismantles the pen into a pile of plastic and metal bits and an ink cartridge, then tosses it in the bag. The student is instructed to shake the bag for as long as possible and reassemble the pen.
After several frustrating, unsuccessful minutes, the student is told, "See? This is why the origin of life via evolution could never happen. You could shake that bag for a million years and it would never assemble into a functional pen. How could something as complex as a human being emerge from randomness?"
