Good to see that we don't fully disagree :) Going back to the example of a doubly nested loop to determine if there are any two numbers in an array that sum to

Good to see that we don't fully disagree :) Going back to the example of a doubly nested loop to determine if there are any two numbers in an array that sum to zero, it should take at most 1 minute for a smart engineer to figure out that it works. They don't have to speak before they've evaluated whether it works. The metric I use is: how long did they take to get to a solution that works, even if inefficient?