Variable Rewards Are Overrated

Thesis: Unpredictable rewards raise arousal and attention. They do not manufacture desire for low‑fit behaviors. Overuse creates noise and ethical problems.

When they may help

  • The core task is meaningful and competence‑driven.
  • Surprise is used sparingly to add delight to real progress.

When they fail

  • The task has no inherent value for the user group.
  • Variability masks the absence of progress or skill growth.

Better alternatives

  • Competence Loops that show skill improvement and real benefits.
  • Personalized rewards tied to milestones the user cares about.
  • Progress Visualization grounded in honest metrics.

Design rules if you still use them

  • Cap frequency.
  • Tie rewards to legitimate achievements.
  • Provide controls to mute or opt out.

Measurement

  • Look for value metrics, not just session count.
  • Track frustration and complaints as leading indicators of misuse.

Related plays
Competence Loops · Progress Visualization · Personalized Rewards