> For the kind of testing they are used, this isn't a major detriment Eh... 1 hour tests turning into 4 hour tests turning into 12 hour tests is one thing, but

> For the kind of testing they are used, this isn't a major detriment Eh... 1 hour tests turning into 4 hour tests turning into 12 hour tests is one thing, but when a 12 hour test turns into a 7 day it hurts. And if a 20 day long bootloader simulation with accurate pad models fails, you may not have a chance to run it again with a fix before tapeout. And Kernel boot in simulation takes so long. Not that you're wrong, just emphasizing how slow it can be. Simulation complexity has outpaced server farm speed increases over the past 10 years, in my experience. And rtl simulation has slowed itself out of usefulness for many software use cases where it used to be not so bad.