This is an excellent article and I rarely see people giving this advise. At the end of the day there is no bottom in general. And it's not clear why that's the

This is an excellent article and I rarely see people giving this advise. At the end of the day there is no bottom in general. And it's not clear why that's the case unless you have a reasonable amount of experience in electrical engineering / manufacturering and computer design. An interpreter or a compiler is a computer. Anything lower than that is just implementation details.