Hardly midlife crisis. At 40, your kids might be getting old enough to require less time. You have a stable job, etc. Most importantly, the massive amount of

Hardly midlife crisis. At 40, your kids might be getting old enough to require less time. You have a stable job, etc. Most importantly, the massive amount of information on hand, connectivity of the internet, and some creative organizers have allowed people to do what many have always wanted! Why is athleticism not looked on for a 20 year old, but is for a 40 year old? When a woman returns to work after a decade and a half off because of kids, is she going through a midlife crisis, assuming working wasn't needed to survive? A crisis implies an impending sense of doom or mortality. It implies socially unapproved behavior. A 50 year old man buying a Corvette to hit on 20 year olds. Extreme athleticism is hardly risky behavior unless you believe live should be without any risk and limited to strolls in park. Sometimes life just gets in the way for a decade or two. Does a 50 year old who buys a truck for hunting or fishing have a crisis? Hunting and fishing can be a lot cheaper than flying all over the world on vacations. A 40 year old is easily young enough to handle an R1, so why not buy one? If he can handle ultra-marathons, go for it. My father did triathlons until 60. Guess what? He loved them. It was a great way to pass the time. As you get older, you find you may have automated a lot of your life away, or at least simplified it. You might also not be fighting to climb the ladder, but instead discovered where you are happy. You might find your day to day too cerebral, with the rest of your body semi neglected. If you have achieved a lot "mentally", why not see what you can do physically?