reply on: What has been the worst or most harmful scientific discovery of all time? \ stacker news ~science

I was trying to think of net harm, because otherwise the answer will be something that's been enormously positive, like oil.

The is also complicated by present net harm sometimes being greater than future net harm. I'd guess bioengineering will be such a "discovery."

I agree. It’s a fun question to think about because it’s so difficult.