It’s the middle of February, and the air is dry. There are fine lines emerging on my forehead, maybe because I don’t moisturize enough, but maybe as a harbinger of something greater: each day I grow closer to my own death. Soon, I will be 30. I will never be younger than I am right now. Fintech-founder-turned-longevity-guru Bryan Johnson has an offer that has caught my attention. For the low, low price of $1 million per year, I can pay him to show me the ropes of the “exact protocol” he’s