I was watching a Sam Harris interview just a moment ago. When he mentioned that we've only had cellphones and the Internet for something like 5000 days. So I looked it up. "When did the internet start?" is really a rather vague question to ask. If I was forced to answer such a question though I would argue that the internet, at least as we know it today, effectively began on August 6, 1991 with the public release of the World Wide Web project by CERN. The era of the mobile 'cell' phone began in the US in 1983 with the FFC approval of the Motorola DynaTAC(Japan had such systems in 79'). It went on sale on March 6, 1983.
So, using these numbers and the date of this post I come up with these results:
Internet Age: 6533 Days
Cellphone Age: 9608 days
A bit longer than Sam claims. But his number is most assuredly more useful. Yes the DynaTAC was on sale in 1983. But it cost $3,995. A dodge Ram 50 truck cost $5665 new back then. Sure the Internet existed, but I didn't hear about until after I graduated high school..... in 1996. My dad did have a cellphone quite a bit earlier than that though. But for most people in the general public cellphones didn't really hit till right around then either.
Incidentally 5000 days ago was 17/10/1995