It took a 100 years from first phone public networks in the 1880s to the basic expectation that you would have a phone number in 1980s. Public internet came thi

It took a 100 years from first phone public networks in the 1880s to the basic expectation that you would have a phone number in 1980s. Public internet came this way in ~20 years (early 90s-early 10s). Smartphones did it in 15?