'The writer’s laptop, a MacBook Air, uses another ‘system on a chip’, Apple’s M2. That single chip contains 20,000,000,000 transistors. The laptop contains so many transistors that if the writer travelled back in time to 1983, he could give every single person on the planet a transistor radio and still have a billion of them left over.'

https://www.lrb.co.uk/the-paper/v45/n06/john-lanchester/putting-the-silicon-in-silicon-valley