> The positive thing about hindsight is that we the human race can learn from it and subsequently re-design things like nuclear power plants, amongst a whole swathe of other technology.

most reactors fail because of humans and money, how can you learn about that? just look at fukushima, some problems were known, but the management have found that such a event cant happen and saved some money here and there.

https://en.wikipedia.org/wiki/Fukushima_Daiichi_Nuclear_Powe...