Write a letter to your 100-year-old self.
Hey me, congratulations! You made it.
You have been saying you will make it to 100, and you proved it. I hope that humans have discovered the theory of everything at the time of your 100th birthday, maybe figuring out gravity. So anti-gravity technology can bring cool things to fly freely. Also, someone could describe what it is like to live in 4th dimension’s world.
I hope you maintain good health, which I fixed after turbulent in my 50th period.
Enjoy the world of the 2060s!