Increase in technology use and advancement is going to lead to a plethora of problems in the future which I'm deeply concerned about. First, it's the obvious over reliance on technology which may end up being obtrusive in our lives. The other major issue is that if or when robots that can do advanced and sophisticated tasks become ubiquitous, then the amount of jobs will reduce. The harsh reality is that if you look at the number of people it would take to operate and maintain a robot, and compare it to the number of humans it would take to do the task the robot would do, you'd likely be left with a far lower number.
If there are less jobs, unemployment increases, which in turn leads to more instability, poverty and violence in countries. Quite frankly, a 50 or so years from now, I think that all of this is going to spiral out of control and the world might be in pandemonium. The increase in human population is only going to make things all the more worse.