Think back to 100 years ago, to the year 1918. Would someone at that time have been able to imagine smart phones? The ability to not only call someone from just about anywhere? But also the ability to instantly get information at the palm of our hand?
Now think forward to 100 years from now, to the year 2118. What will exist then that we can barely even imagine now? Will our existence in the year 2018 seem in any way primitive to the people of that time?