Like try turning off the internet. That's the same situation we might be in with regards to AI soon. It's a revolutionary tech now with multiple Google-grade open source variants set to be everywhere.
This doesn't mean it can't be done. Sure, we in principle could "turn off" the internet, and in principal could "uninvent" the atom bomb if we all really coordinated and worked hard. But this failure to imagine that "turning off dangerous AI" in the future will ever be anything other than an easy on/off switch is so far-gone ridiculous to me I don't understand why anyone believes it provides any kind of assurance.