I'll clarify Tostino's comment. For most of Moore's Law, price per mm of silicon was constant. A state-of-the-art 10 micron, 5 micron, 2 micron, 1 micron, and 5

I'll clarify Tostino's comment. For most of Moore's Law, price per mm of silicon was constant. A state-of-the-art 10 micron, 5 micron, 2 micron, 1 micron, and 500nm node, at introduction, was basically the same price per square millimetre. This meant you had exponentially-growing numbers of transistors for the same price. Density is going up now, but so is price. A billion transistors a 4nm will cost less than a billion at 40nm, but it's a different ride since you don't ave a 100x reduction in cost. There is a reduction, but it's not the same wild ride. At the same time, NREs are exploding.