find a way to corner him so that he cannot not listen to you
you gotta say:
Look gramps
you're 90 years old and you are a human being on the planet earth, circling around the sun, with a bunch of other floating geometric holograms
composed of atoms. (which are more nothing than something)
Then show himthis
after that, after you get him with all your willpower to check it out, let him know that everything matters. Say ''EVERYTHING MATTERS GRAMPS!!!" in
a real loud, serious, and embellished way. Feel free to repeat this once or twice more in a Will Ferrell-esque way. Then causally say, in an assertive
but soft Gene Wilder in Willy wonka sort of way "and at the very same time nothing matters."
After this soaks in and you see it in his eyes, do a karate kick and shout..
So are we gonna make it to the big one hundo!!!!????
Obviously escalate towards the end of that and put in a good hi five after that.
You could change your grandpa's life with that if you do it a sincere and human to human way. Speak to his subsconscious and transmit the
energy....cheers



...
( Sorry I couldn't resist) 
