We often build systems as if everyone will always be focused, rested, careful, and thinking clearly.

They won't.

People forget.

People misunderstand instructions.

People get distracted.

People rush.

People make assumptions.

And sometimes, they make the exact mistake that everyone assumed would never happen.

Plan for Predictable Human Error explores why good systems shouldn't depend on perfect people.

Human error isn't always a character flaw.

Sometimes it's a predictable part of being human.

That's why strong systems include safeguards.

A reminder before an important deadline.

A checklist before a critical procedure.

A confirmation before an irreversible action.

A second set of eyes when the consequences are significant.

A default sett ...