Back in school I was often told the lead pipes in Roman aqueducts likely played a key role in the fall of Roman. We know lead is a poison with negative long term effects on cognition. The aqueducts were also responsible for Romes ability to proliferate and grow. Lead was both a blessing and a curse. I wonder what future generations will say about our highly enriched and processed diets. Calories have never been cheap…
As to your last question, part of it may be rethinking the profit motive in food production. Food waste to keep prices high is a huge issue.