> No one can be a 100% sure The problem is complexity plus scale. Do something potentially disastrous a 100k times, then you need to be impossibly close to bei

> No one can be a 100% sure The problem is complexity plus scale. Do something potentially disastrous a 100k times, then you need to be impossibly close to being a 100% sure you've made it safe for every case. 99.9% doesn't cut it. BP's fallback position is: if it blows, and we can't stop it, we'll drill a relief well. That's the kind of decision that looks ethically bankrupt, probably is ethically bankrupt, and is nonetheless going to be made every time unless all the other oil companies also agree, or are forced to have, the fallback already in place.