3 checked facts

Efficiency

Everything on this site about efficiency — each one naming the study behind it.

You pay a steep cognitive price for multitasking.
Switching between tasks significantly increases error rates and lowers processing speed compared to focusing on one ta…
Your brain prefers to avoid thinking deeply.
The cognitive miser theory suggests that you habitually seek shortcuts to minimize mental effort.…
You complete tasks in the time you allocate, regardless of complexity.
Parkinson's Law states that work expands to fill the time available for its completion.…