I was trying to take money out of an ATM and I couldn鈥檛 remember my four-digit PIN. I use these machines most weeks and I don鈥檛 have to think about my PIN 鈥� I just enter it.
About half an hour later the number came back to me and I immediately knew that it was correct. What caused this brief memory lapse and what happened later to allow me to remember my PIN?
Tomek Rej, Carlingford, New South Wales, Australia
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