[runnerup]

Sometimes there are things are obviously bad and harmful and it can be known ahead of time that it will harm people. These things should be stopped before they happen in a properly functioning society.

If someone invents a way to do it safely, they should have the burden of safely proving that first.

If someone wants to stockpile 100 tons of explosive material in my neighborhood, I don't want my estate to use the courts to find remedy after my section of the neighborhood gets leveled/cratered. I want the obviously harmful activity to be stopped before the hazard is created.

[fragmede]

Thankfully it's not quite that level of anarchy, it's just that new housing can be built without local governments saying "no". It isn't the case that heavy industry can now be placed next to an elementary school.