Despite increased knowledge, the prevalence of obesity and related illnesses has worsened, suggesting a lack of practical knowledge leading to better outcomes.

“and yet I would argue that in the presence of all of this knowledge that we have we're getting fatter and we're getting sicker right so how do we reconcile the fact that our knowledge is somehow increasing and we're so much more knowledgeable and yet the actual problem that matters seems to be getting worse not better right well what we don't have is again with a couple of exceptions we're going to get to later I think we don't have the the sort of sea change the real orbit jumps in knowledge of a utilitarian useful knowledge knowledge that helps us change the way we do things now that lead to better outcomes that we don't yet have”