Base85 contains just about every printable ASCII character, so I’ll use that as a base. 85¹⁶ ~= 10³¹ -> extremely huge, but still feasible at least for state actors. 85²⁰ ~= 10³⁹ -> if I read Wolfram Alpha’s comparison correctly, that is more information than is believed to be contained in the DNA of all living creatures combined. That’s why I’d recommend >= 20 characters.

https://i.imgur.com/RvfbyPk.jpeg

I don’t think we will.

But religions don’t offer a good answer, either. At least those that a know. “In the beginning was god” But why was there god? What was there before god? What created god? Ask that in church and you get stoned to death. Or kicked out. Either one of that.

Yeah, I’d consider anything less than 20 characters broken. Much too likely that it’s contained in a rainbow table, regardless how many special characters you use. Can I remember many 20 character passwords? No, but my password manager can.