This comment reminded me of the TV show I've been recently watching on Netflix, Pantheon. It's about a different technical breakthrough (I don't want to put any spoilers), but it's also something that completely alters society, no security is able to deal with that new technology, first thing that happens is that the technology is weaponized... etc.

Idk enough about quantum computing to even understand this... but a technology that turns, say, AES or Blowfish, suddenly trivial to crack would very likely change the world

In order to evolve, forbiding evolution is the wrong path. Just use and study and learn from new things and accumulate experience is the way to go.

They're not. What's there to think about?

As if "thinking about it" will ever stop people from acting first.

I'm far more scared when tech-bros like Musk land on Mars and contaminate stuff we might not even be able to detect yet.