6 permission mean read+write, but no execution rights. So you cannot execute any commands and system bricks itself.

I did chmod -R 666 / when I started playing with Linux in 1999. It did not end well.

Sudo didn’t really exist back then, you ran things as root like real men. /s

Good, almost all of them were horrible, like AIX.

Old saying in is: In Internet men are men, women are men and children are FBI officers.

Edit: 4chan rules of the Internet:

Rule 29: On the internet men are men, women are also men, and kids are undercover FBI agents.

For Karl!