If I’d known I was going to live this long, I’d have taken better care of myself.

Blake’s quip is a wry, retrospective joke about aging and the unpredictability of longevity. It plays on the common human tendency to treat the body as if it were replaceable or as if consequences were distant—until time proves otherwise. The humor comes from the conditional “If I’d known,” which implies that better habits are often postponed because the future feels abstract. At the same time, the line carries a gentle moral: health is an investment whose payoff may arrive later than expected. In a broader sense, it also reflects resilience—surviving long enough to regret not planning for survival.