13 years ago, a man stored 150 bitcoins in an old Android phone and used a 3x3 grid pattern as the screen lock.

Watching the wealth in front of him, he spent day after day repeatedly unlocking the gesture and recording it—notes that, over the years, have piled up to more than a meter high.
The bitcoins in this phone are now worth about tens of millions of dollars. The wealth is clearly right there, yet a screen-lock password keeps it firmly out of reach.