Originally Posted by
Squawk7700
So it's not zero.
Your approach to risk appears to be similar a bean counter or a commander at war.
Nothing, absolutely nothing in life is zero risk. Aviation is no different. All we can do is minimize the risks. The risk of a dual engine shutdown on a long ETOPS flight is not zero, but it's pretty damn low - as in less than 1 in 1 billion. Not coincidentally, less than "one in a billion" is what we used to determine 'safety' in aviation since it's not physically possible to make the risk of a catastrophic outcome zero.
If you're not OK with a one in a billion chance of not making it, you'd better not fly. The whole system is built around that - not just ETOPS.