Same thing that’s wrong with mine: the brain is really good at working collaboratively with other shit, and that means if the phone can remember the numbers your brain will happily give that task to the phone. I can remember so many number from before I had a cell, and almost none since then.

It’s also got to do with repetition. We used to dial the number each time, now we almost never type the digits in, just pull up a contact (or more likely, a text from them) and hit call