The Earth is just about half-way through the agricultural revolution where one worker can on average produce food for two workers and their dependents now. From the beginning of the agricultural revolution that freed up folks to make other goods and services around 1750-1850 to today where we have only half of workers worldwide give or take working in agriculture, 6 times as many people and 35% more calories per person from 1960-1990 alone.1
Compare that to the BBC radio report saying that since the dawn of the PC revolution (I got my Apple ][+ with disk drive and language card mail order near the dawn of the personal computer revolution in 1983). We are nearly at one billion PCs worldwide and on a pace for 3.5 billion PCs worldwide in about ten years.2 Interesting times indeed.