In addition to thelatestmodel, in an attempt to really dumb it down.
Imagine your cat has a button that when pressed all the DNA, neurons, and cells are rearranged and reworked to function exactly like a dog would. Your cat now 100% believes it is a dog and acts EXACTLY like a dog would. The hardware has been completely changed.
You didn't have to teach it to act like a dog (software emulation), it is a dog, a "simulation" of a dog, but an absolutely perfect simulation.
The only limiting factor here is "how much" DNA it can rearrange (transistors, clockspeed, etc..) so while your button may not have enough of the magic sauce to make your cat act like a human, it can probably handle many mammals. This is why the NT mini can simulate a lot of 8-bit hardware like NES or 2600, but couldn't do 16-bit stuff.
The metaphor falls apart if you look at it too hard, but hopefully that helps anyone where all this is completely alien wrap their mind around it a bit more.