7 reasons the world's most careful people still write things down

In 1935 the best test pilots in the world crashed Boeing's Model 299 over one forgotten step. The fix wasn't training — it was a short written list, and the B-17 flew millions of safe miles on it.

The failure point in a busy day is rarely skill. It's recall under load — the mind juggling six things quietly drops the seventh and reports nothing.

A 19-item written checklist in eight hospitals cut surgical deaths nearly in half. The most trained people on earth got better by writing things down.

You board planes flown by checklist, then run your own day on the honor system. MEMO gives the day a pre-flight: three items, written, in your pocket.

A note buried in an app is stored; a note on a whiteboard in your wallet is seen. The list only works if it's in your eyeline when it counts.

There's a small physical landing in checking an item off by hand. Write, check, wipe — the day closes clean, ready for tomorrow's run-through.

MEMO won the iF Design Award 2024 and has shipped to 41 countries from Delft, the Netherlands. It holds 6 cards with RFID blocking — the checklist that's also your wallet.