From time to time you answer questions it gives you to create a version of you that can be called up years after you're gone.
"Hey Grandpa, what do you think of this new Mars base."
"Hey Grandson, that was before my time but I'd be very excited about it. I looked it up and see that it's already
got some colonists. I'm glad I worked for Nasa back in the day and helped create one stepping stone towards that goal."
"What did you do?"
"I was on the team that programmed the computer on board the command module of the Saturn 5 Moon missions. That computer had a processor speed of 1.024 MHz and 64 KB of RAM compared to for instance, your iPhone which has a processor speed of 3.2 GHz and 6 GB of RAM. You guys are really impressive! How's your robot coming along?"
Basically a mega journal with virtual person speaking in the actual voice, recorded facial gestures, same sense of humor etc.
If there's something out ther already let me know.