By pushing into a new dimension, engineers at IBM have nearly doubled the number of transistors they can fit on a microchip—the sort of device that animates your computer—cramming nearly 100 billion of them into a square centimeter. Announced yesterday, the advance continues a historic but slowing trend known as Moore’s Law that since the 1960s has seen the number of transistors on a chip double roughly every 2 years. But it underscores how engineers can no longer simply shrink transistors. To realize the increase, IBM researchers stacked them.
You should read what you link, it's the opposite. They are actually paused to not heat the river up.