Elon Musk: "You're programmed to die. And so if you change the program, you will live longer." The body’s cells all age in perfect sync, no one has an old left arm and a young right arm. That means the aging clock is obvious and programmable. Musk points out bowhead whales live 200 years and Greenland sharks over 500, proving extreme longevity is possible in nature. He believes solving human semi-mortality is not particularly hard it's either a hardware or software problem we’ll crack with tech in the next decade. Key advice: “The important thing is not to die from something stupid before the solutions come.” In retrospect, the fix will seem extremely obvious. What do you think are we on the verge of rewriting our lifespan code?