Diagnostic question · Hooked
Time from investment to return
Measures the time from an investment to the next visit, and what would halve it.
Return
Plain label: cycle time question
How long is it, typically, from a user putting something in to their next visit, and what would halve that time?
Limits
What we don’t claim
- The Hook Model is a practical design tool, not a validated or complete theory of behavior.Hooked, Introduction
Sources
Hooked · Nir Eyal
Ch.5
Source IDs: HK-Q110
Book content is paraphrased, never quoted at length. Last verified October 24, 2026.
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