I never said how long I expected it to take, how do you know we even disagree there? But like, is 50 years a long time to you? Personally anything less than 100 would be insanely quick. The key point is I don't have a high certainty on my estimates. Sure, might be perfectly reasonable it takes more than 50, but what chance is there it's even quicker? 0.01%? To me that's a scary high number! Would you be happy having someone roll a dice with a 1 in 10000 chance of killing everyone? How low is enough?