The idea of passwords being something you remembered, died out when we started to see a proliferation of systems needing passwords for authentication. Humans (

The idea of passwords being something you remembered, died out when we started to see a proliferation of systems needing passwords for authentication. Humans (in general there are some exceptions) aren't very good at remembering large numbers of arbitrary long random strings. So using a password safe and then copy/pasting into the relevant dialog is likely to be a better option than relying on human memory (which inevitably means for most people using the same password in many places)