What is decision speed?

Decision speed is a concept in personal epistemology: One-way doors deserve careful analysis — two-way doors should be walked through quickly.

Example: You spend three weeks evaluating which project management tool to adopt. You research features, read comparisons, run trials, build spreadsheets. Then you realize: if the tool doesn't work, you migrate in a weekend. That was a two-way door. Meanwhile, you signed a two-year vendor contract with a 30-day evaluation window and barely glanced at the terms. That was a one-way door — and you treated it like a minor errand.

This concept is part of Phase 23 (Decision Frameworks) in the How to Think curriculum, which builds the epistemic infrastructure for decision frameworks.