Comment by ggreer

Yes sometimes emulators have bugs, but they do a good enough job that most people aren't willing to go to the trouble of using the original hardware. Also emulators can unlock new capabilities such as better graphics.[1]

Human brains are far more resilient than software, so my guess is that emulated brains won't have brittle corner-case bugs like emulated software. People today do all kinds of crazy stuff to their brains and remain functioning: drugs, sleep deprivation, getting hit in the head, fasting, aging, etc. If subtle changes to our brains could cause our minds to stop working, we'd know by now.

1. https://en.wikipedia.org/wiki/Pixel-art_scaling_algorithms