Read Only in Space (Preferably on Mars)

Dear FutureMe, If you are reading this, you have successfully made it into space, or even to Mars. The chances of me figuring out if I ever go to space are 100%, but I wish to know now. Too bad that can't be done. I hope I have kept this E-Mail address. If not, I will invent the Time Machine and suggest to myself that I keep it. I hope you weren't too curious and prematurely opened this. Sincerely, 15-year-old Us P.S. I'm proud of Us.