“A Muggle security expert would have called it fence-post security, like building a fence-post over a hundred metres high in the middle of the desert. Only a very obliging attacker would try to climb the fence-post. Anyone sensible would just walk around the fence-post, and making the fence-post even higher wouldn’t stop that.” —HPMOR, Ch. 115
(Not to be confused with the Trevor who works at Open Phil)
“Slipping into a more convenient world” is a good way of putting it; just using the word “optimism” really doesn’t account for how it’s pretty slippy, nor how the direction is towards a more convenient world.