I went to the shops yesterday and forgot the PIN code for both my cards. I've been typing one of those in for nearly 20 years. ¯\_(ツ)_/¯

My mum frequently punches in her postal code instead.

Try to remember the finger movements.

Works well until you encounter a new keypad layout (eg when going abroad). I locked my card once like this although I had been typing the code for years before.

Android has this "draw a path through some dots in a grid" analogue to a PIN code. On the boot screen, the grid is a somewhat different size than on the unlock screen. This defeated my muscle memory, and my conscious memory had lost its backup.

This happens to me all the time when playing guitar. I could be there blankly strumming wondering what the notes were, but the moment I get something right, I’ve got it. Or sometimes it’s that I can’t remember the rhythm at all and I try to hum it or anything at all that might help me remember and once I’ve got the first few moments it comes flooding back.

It doesn’t help that I’m relatively new to guitar.

> It doesn’t help that I’m relatively new to guitar.

I've played for 16 years and I still have these moments. But thankfully it's so satisfying when the music finally kicks in.

Same thing! I had played the piece 5 minutes before the lesson and right after the lesson warmup (I warmup before the lesson so that my teacher thinks I'm better than I really am...ego..self denial...whatever) he asks for the piece and I can't play beyond the first bar.