KynikossDragonn said:
I've personally used passwords generated to such a degree it would be virtually impossible to brute force, unless quantum computing advanced far enough to make it all a moot point.

Never had a account of mine compromised for years since adopting such a ridiculous password generation scheme.

If you want a long, memorable password, just make it the web address of your favorite image/video/etc. It's hard to guess, readily comes with special characters, and if you're forgetful like me, just look up the page again only to find out they have switched domain, changed the path structure and the original content was removed anyway, so why bother?