We might be able to “cheat death” within our lifetimes.

You should consider reevaluating your blind faith in physicians (they were an instrumental part of the opioid crisis after all), especially when it drives you to make a dismissive comment like this in response to a benign suggestion about a dietary change that you seemingly haven't evaluated before responding. Here the individual has seen success with this approach for themselves and others and is simply sharing their experience. They're not suggesting anything extreme or dangerous.

I've seen similar effects with intermittent fasting combined with a whole foods plant-based diet. This will likely be my long-term strategy.

Prior to that, in ignorance, I thought my productivity and contributions would be self-evident. That is not a great strategy for someone who isn’t inclined to self-promotion.