About Knowitall.

Building true competence. The hardest but most rewarding phase.

Knowitall helps you map two things everyone quietly cares about: what you know, and how sure you are about it. It's grounded in research (see Dunning–Kruger) and designed for quick, repeatable learning moments that fit your day.

Take a short quiz on a focused topic, report your confidence beforehand, then compare the result. A single point on the knowledge-vs-confidence curve explains a compact story: underconfident, well-calibrated, or pleasantly overconfident.

Sample result

Knowledge (%)Confidence (%)0%25%50%75%100%0%25%50%75%100%NothingMount StupidValley of DespairSlope ofEnlightenmentPlateau ofSustainabilityYour Result

Example: 68% knowledge with 82% confidence — a clear calibration gap worth noticing.

Take today's challenge

How it works

  • Pick a topic (or take Today's Challenge).
  • Choose how confident you feel (0–100%).
  • Answer 10 concise, fact-focused questions — results are instant.
  • Share a compact, non-sensitive summary to compare with friends.

Shares are intentionally lightweight: they never reveal answers, only a concise summary that's easy to compare across friends or time. Use Knowitall as a study habit, a fast check-in, or a playful debate starter.

Sources & credits

Key inspiration: Dunning, D. & Kruger, J. (1999). Unskilled and unaware of it. Journal of Personality and Social Psychology.

Learn more: Dunning–Kruger effect (Wikipedia)

Built with care: minimal analytics, no answers stored in share links, and attention to accessibility.