If a system is simple/predictable enough that E2E tests would reliably pass, it's probably simple/predictable enough not to break.
Madness string 85618
Take the universe and grind it down to the finest powder and sieve it through the finest sieve and then show me one atom of justice, one molecule of mercy. And yet you act as if there is some ideal order in the world, as if there is some... some rightness in the universe by which it may be judged.