Debate slice · fact-check window · math only

Ham vs Nye · the population formula

Ken Ham’s tone in that famous exchange is often graceful under fire. This page is not a fandom shrine — it is a math window: population growth is exponential (compound), not simple interest.

Claim under test: when population math was mocked, the funny formula on the simple-interest side misses the caret — growth compounds.

The two formulas

Simple interest (wrong model for populations):
  P = P0 · (1 + r·t)

Compound / exponential (standard growth model):
  P = P0 · (1 + r)^t
  or continuous: P = P0 · e^{r t}

The difference is the ^  — each generation multiplies, it does not only add.

If you use simple interest on a compounding process, you can make the other side look absurd while your own model is the one that broke. Fact-check the algebra before the applause line.

ModelShapeUse
Simplelinear-ish in tsome loans · not breeding populations
Compound (^)exponential in tpopulations · bacteria · capital that reinvests

Debate door

Biographical aside sometimes noted in commentary: Nye later married in a church. That is color, not the math. The caret is the math.

Why this sits on Defend Your Sins

Theorem G asks for honest axioms. Debate slices should too: if you ridicule with a formula, the formula must survive. Grace under mockery is rare; wrong math under mockery is common.

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