I wrote a paper about that in an English class in high school. (1968) The teacher thought it was stupid and gave me a C. I predicted cell phones forty years ago...My wife called me crazy.
Mobile phones were around in the 1950's and the first concept of "cell" communication was thought up in the late 40's. The 60's had RCC. Anyone with an idea of electronics and radio saw it coming back then I would imagine.
The simplicity was a mixed blessing - we didn't have know many options so if we didn't fit in we had to find our own way or look for others. But the 1950s, 60s, 70s were quite wonderful in the respect people had for one another which you no longer see so much now. But now I have learned enough I know how to keep my life simple by just emphasizing the things that matter to me.
I often feel that we've gained much knowledge over my lifetime(I was born in 1951), but I also think that we lack the advance in wisdom to use these gains properly. I'm especially concerned that young people aren't enjoying the use of their creative imaginations and the social interaction that goes with it. I used to love the summers when the kids in our neighborhood played long and hard, usually making up the fun as we went along. We made lasting friends.(Some have lasted a lifetime). I understand too, that hindsight is always perfect and we had our problems to work through. We shouldn't lose sight of that either. I don't see strength in families as then, and I don't see enough of the spiritual and moral training and discipline that we had at one time. Some may not understand that having the family around the table was a time of bonding and talking things out, but it was. We didn't have to wonder what everybody else was up to or where they were.