Flash and DRAM only have localized activity so heat isn't so much an issue - yet. There is actually a limit study using fundamental physics that shows that the

Flash and DRAM only have localized activity so heat isn't so much an issue - yet. There is actually a limit study using fundamental physics that shows that the amount of heat you can remove from a solid per unit time has a limit. Overheating is unavoidable below a certain volume. We're very close to that limit.