Barring some global catastrophe the biggest and most obvious change will be the population. As the number of people increase so to will be a need for greater control of communications outlets and the narrative for the sake of maintaining order. One noticeable thing I see now and may presumably only get worse is how the internet and the instant access to information has dragged children into the realm of identity politics, and the party rhetoric. Funny thing is I find absolutely no difference between how a 14 year old and some of the older fellas communicate. Its a battle of egos on the school play ground. Thankfully though there are a few real thinkers which take the time to talk some sense but unfortunately they are becoming harder and harder to find.
Wanted to add too that its not all doom and gloom or 1984 social control and fear. I think there's going to be some pretty kewl advances in science, space exploration, energy, medicine, preserving our enviroment. All of which will greatly benefit the United States and humanity. I'm really happy about that and looking forward to it. 20 years from now I'll be 79, hopefully still having a good time, able go out into the wild and spark one up on occasion while marveling at all the new stuff
