The METR Experiment: Perception vs. Reality
Impact on Task Completion Time
Faster (Speedup)
Slower (Delay)
Experienced developers predicted a 24% speedup and felt a 20% speedup after the task. However, objective timing revealed a 19% slowdown, highlighting a significant disconnect between cognitive effort and elapsed time.
Data sources:
Augment Code
,
METR
,
The Register
,
Cerbos