Part 5/12:
The speaker discusses various "tells"—rules or indicators that reveal the true nature of mathematical models. Examples include:
The derivation fallacy: Derivations do not prove something is true; experimental verification is necessary.
The ambiguity tell: Mathematical operations like square roots or derivatives can cause loss of information or ambiguity.
The doppelganger problem: Certain mathematical constructs only exist in "evil" parallel universes, not in the physical universe.