Re: "We have now run out of IPv4 addresses"
In the early 80s perhaps, but in the early 90s? By that stage, I think there were enough people involved that you would never have got universal agreement. You can't even get people to agree that v6 is necessary today, and v4's problems are widespread and obvious now. That was not so much the case in 1990.
I wasn't around at the time, so perhaps my idea of the size of the internet at that time is a little distorted, but I'm pretty sure it was reasonably widespread and there were far more than a handful of actors involved. I'd love to read a book that covered the history and growth of the internet in that period though, if anybody can recommend one.