Brian Barrett at Wired has a good explainer on the challenges of scaling as the backbone of Moore’s Law. He goes over the transistor design that has helped keep the trend of price to performance going in the last few years as well as a new approach IBM is optimistic will keep the trend going for several more years. No mention in the article of where miniaturization reaches physical limits but that threshold is still out. Unlike this particular development, at a certain point the realities of physics at ridiculously small scales will required shifts away from transistors and silicon.
A new design from IBM has major implications for everything from AI to self-driving cars.