Once you start to see it, you see it everywhere. First, there is the spectacle of Bryan Johnson, who is spending millions to stay young, injecting his son’s blood plasma into his veins, electroshocking his penis, following a strictly regimented diet that looks for all the world like an eating disorder. When Katie Drummond interviewed Johnson for Wired, she asked him flat out: “True or false: You, Bryan Johnson, the man sitting across from me, one day at some point in the future, will die,” to