There was some related discussion earlier, see the comments here: https://www.lesswrong.com/posts/oyTQpqBtdawjAnfcm/why-i-am-not-too-worried-about-aipocalypse-scott-alexander
The arguments I was thinking of were, we actually wouldn’t have a good way of identifying Dyson spheres, and we’ve only surveilled ~1% of stars anyways.
There was some related discussion earlier, see the comments here: https://www.lesswrong.com/posts/oyTQpqBtdawjAnfcm/why-i-am-not-too-worried-about-aipocalypse-scott-alexander
The arguments I was thinking of were, we actually wouldn’t have a good way of identifying Dyson spheres, and we’ve only surveilled ~1% of stars anyways.