Comment by heydenberk

It's interesting that this has ramifications for the emulated console(s) within the console. On one hand, it's an amazing technological achievement to emulate a system well-enough that it can emulate another. On the other hand, however, it's staggeringly inefficient. Emulating a system is inefficient, but it makes sense because it prevents the need to keep all kinds of hardware 0n hand. Emulating a system that emulates a system compounds the inefficiency and is unnecessary, but is a really cool achievement.