[aivisol]

Another one from that era was something like: "how to destroy the Earth". There were several methods proposed, one of which was to use a black hole: "step1: take a reasonably sized black hole, step2..." etc.

[amenhotep]

https://qntm.org/destroy might be what you're thinking of? Lots of other good fiction there too. I love the There Is No Antimemetics Division stuff.

[aivisol]

Thanks so much!