Vya Domus What ? Why ? That is by far the shittiest validation method I have ever heard of.

That's how science works. If most people on Earth do an experiment incorrectly, the bad result becomes statistically relevant (as in: not an obvious outlier).There's no way to test this other than perform a different experiment of the same phenomenon.In fact, that's why we're able to notice these issues in computational science.There are different libraries that do equivalent math. And there are different CPUs and GPUs that we can compare.If Navi was doing some computation incorrectly, but no other hardware was used, there would be no way to test for this error.