I started my internet career in the early 2000s during the dot-com bust. It's hard to picture this now, but the internet was a thing that people used only intermittently, to check email or plan travel or do some research. The average internet user spent about 30 minutes a day online, compared to about 7 hours today. To use the internet, you had to sit down in front of a desktop PC and "log on" (most people still had dial-up), nothing like the always-on, high-speed mobile internet we use ...