The word serendipity was coined by Horace Walpole in 1754, inspired by a Persian fairy tale called "The Three Princes of Serendip." In the story, the princes were "always making discoveries, by accidents and sagacity, of things they were not in quest of."
This is the essence of serendipity: not mere luck, but the prepared mind that recognizes opportunity when chance presents it. Fleming didn't just find mold on his petri dish—thousands of scientists had seen mold before him. He was the one who wondered why the bacteria had died around it.
Psychologist Richard Wiseman spent years studying lucky people and discovered patterns. Lucky people:
Luck, it turns out, is a skill that can be cultivated.
The Serendipity Engine collects accidents and connections—real discoveries that happened by chance, unexpected links between distant domains, and questions designed to help you notice the serendipity already in your life.
Each day, a new combination appears. Each seed word generates a unique constellation of accidents. The patterns are deterministic—same day or same word always produces the same results—so you can share them, return to them, find them waiting.
But the real serendipity isn't on this page. It's in your attention, your willingness to notice the accidents in your own life and wonder what they might mean.
Some suggestions:
"Serendipity. Look for something, find something else, and realize
that what you've found is more suited to your needs than what you
thought you were looking for."
— Lawrence Block
The Serendipity Engine ~ Celebrating happy accidents since 2026
"In the fields of observation, chance favors only the prepared mind."