Serendipity vs Planning

An interactive exhibit — Random the Book

Was it luck or was it a plan?

History is full of discoveries and inventions we assume were either carefully engineered or happened by pure accident. The reality is almost always more complicated. For each of the following, place it on the spectrum between pure accident and fully planned — then find out what actually happened.

Pure Accident Fully Planned

Your call

Actual position

What actually happened

The point

The full picture

Here's how your instincts compared to the historical record. Notice any patterns in where you were most confident — and most wrong?

average distance from actual position (lower is closer)
Within 15 points
Within 30 points
More than 30 points off

What this tells us

The planned/accidental distinction is almost always more complicated than it looks. Most "accidents" required enormous preparation to be recognised and acted upon — what Horace Walpole called sagacity. Most "plans" required unexpected inputs to succeed. Serendipity isn't the absence of planning; it's what happens when a prepared mind meets an unplanned event.