I'd argue that saying something today that will be common sense 25 years in the future is the very definition of prophetic.
None of this was common sense back then, that's for sure. I got my first email account in 1995.
I'm not sure it was so common as to be common sense, but it was a reasonably common prediction among tech people. The slogan "the network is the computer" was coined at Sun in 1984!
It was common sense in 1977, when the people I worked with were connecting their computers together.
I'd like to say that it still wasn't all that prophetic back then, but I was only a wee lad and don't seem remember much of the early 80's...
Also, more humorously, "said this" becomes "spoke of this" when you're talking about Steve.