I often hear how wonderful it would be if we could all live to be 150 or 800 years-old, or better yet, just never die, but what I never hear is why. What would be so wonderful about it? What would you do with all those extra decades or centuries? Play more video games? Spend more time on social media? Finally take that fifty-year cruise you’ve been putting off? Watch more celebrity dance shows? Take your skincare to the next level? Learn Spanish or fly-fishing or clarinet? Have thousands of grandspawn?