You worked on ARPANET? 2015 - 40 = 1,975. The TCP/IP protocol was introduced in 1982. In the early '80s NSF began sharing ARPANET with research and educational institutions, renaming it NSFNET. Commercial ISPs began to emerge only in the late '80s. It wasn't until the mid '90s that it became known as the Internet and the last restrictions against commercial traffic ended. That's when I first got on the Internet, in the mid '90s, from work. I used to work next to another group in the mid '70s at System Development Corp. that was developing part of ARPANET, that's where I first heard of it. I never dreamed that the public would ever have it. You haven't been involved in "the biz" for almost 40 years if you are referring to the Internet. Not unless you were involved in ARPANET, in which case excuse me!