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reasonable-not-rational

[AI Synthesis]: Perfect rationality is a poor guide for real humans. Reasonable plans you can stick with beat optimal plans you abandon.

Reasonable beats coldly rational

  • Do not aim to be coldly rational when making financial decisions.
  • Aim to be pretty reasonable—more realistic and easier to sustain for the long run.
  • That is where the science ends and reality takes over.

Actions

  • Prefer a financial rule you will follow for decades over a theoretically optimal rule you will quit under stress.

Sources

SourceLocationRole
books/The psychology of money.mdch11 Reasonable > Rationalprimary
notes/2026-08-05-the-psychology-of-money.mdch11highlights

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