I was reading an article and it said that eventually, when you get silicon transistors to a certain size, they wont be able to operate anymore and will end up melting. I have always wondered the following... what is the point of trying to make transistors smaller when we can just make the actual chip bigger? I mean i wouldn't mind a slightly larger laptop if it had double the processing power by just adding a second microprocessor, thus doubling the amount of transistors while keeping the sames size. What is wrong with my assumption? Obviously it would have been done by now if it would work.