My age is most certainly correct. LA freeways go back to before I was born. It's funny for me to see multiple lanes jammed up with early postwar cars and trucks. Your perspective gets time shifted due to you only being 20 at this time and the pace of change has increased, so I expect when you're my age and a 20 year old enthusiast comes along, you will think about all that has transpired in just your lifetime and go, "Wow!" and wonder what the young generation will see when they get to your middle and old age.
My maternal grandmother was born in 1912, the year the Titanic sank. Steamships without sails had not been around long. The radio and airplane were invented just a few years prior. There was no real highway system. Cars were just beginning to become a mass market item.
So when you are older, some young person you know is going to see 2112. Think about all that can take place in a 200 year timeframe. Will there be roads on the Moon and Mars? Bridges/tunnels connecting across the Bering Straits and Straits of Gibralter? Maybe we make it to the Centauri systems (Proxima and Alpha) and if we do, what gets built there?
No matter what we build or where we build it, nothing gets built unless someone has a desire to build. You my friend have that in spades! That gives me hope for the future, one in which no one will remember me or you or anyone else with enough passage of time. However, someone had to build the Sphinx and the major pyramids at Giza, so let those works stand as mute testament to the power of a vision and remember, without vision, we are blind and will wander aimlessly as a civilization.