Moore's Law is the observation that since the invention of the microchip, the number of transistors on a circuit doubles every two years. In recent years, many had questioned whether that incredible pace could continue much longer.
IBM recently gave the doubters an answer by producing a prototype chip that's nearly four times as powerful as today's top-of-the-line chips.
IBM says that it is able to create chips with 7-nanometer transistors by using silicon-germanium instead of just silicon.
As points of comparison to the size of the seven-nanometer transistors, a strand of DNA is about 2.5 nanometers in diameter and a red blood cell is roughly 7,500 nanometers in diameter. IBM said that would make it possible to build microprocessors with more than 20 billion transistors.