Which left us with a chronological problem: While the emotional throughline of the film was working, the age difference between Muntz and Carl (who’d admired him since childhood) should have meant that Muntz was pushing a hundred. But we were late in the game—too late to fix it—and in the end, we simply decided not to address it. We’ve found over the years that if people are enjoying the world you’ve created, they will forgive little inconsistencies, if they notice them at all. In this case, nobody noticed—or if they did, they didn’t care.
Link · Chapter 8: Change and Randomness