Ugh, please take it in context. That was in response to something.
> There's not going to be a single magic compound. Slowing the aging process is massively complex and will probably require a cocktail of treatments
My counterpoint is, slowing aging could easily be the result of a very simple compound. It's irrational to assume it must be complex just because we don't know it.
You eat, you live. Sure. But why? What happens to the things you eat? What can you eat? What/how/why is the pain in your stomachs?