A practical lab · about 17 minutes
Interactive learning lab
Building & shipping · guide 2 of 6
The idea kill-switch lab
0/7 core signals
Saved only on this device
Decision lab · BriefingScene 1 / 8
Stopping is a resource allocation decision
A killed idea returns time, attention and money to the next experiment.
Stopping is a resource allocation decision ready.
Predict
Inspect
Verify
The strongest stop signals are behavioural: nobody works around the pain, positive reactions never become commitments, the incumbent owns distribution without a credible wedge, or you have no specific edge in the market.
Two clear stop signals deserve attention.
Three already form a decision.
Write the rule before future-you rationalises.