Originally Posted by
alan19
To oversimplify, account security is a tradeoff between convenience and safety. The most convenient would be a single easy to remember password for all websites, obviously this is not safe. The ridiculous opposite extreme would be to memorize a unique 10+ character random password for each site. Of course, this is unreasonable.
That's not an oversimplifiction, that's conventional wisdom.
No need to memorize many passwords. With lastpass and similar products, all you have to memorize is one password.