Feeding people was solved in the 20th century, perhaps almost too easily. See correlation between poverty and obesity in the 21st century, vs the 19th century.
Obesity is strongly tied in with the fact that the food we're consuming is unhealthy - rather than the fact that it's purely excessive. One of those unhealthy factors is an overabundance of sugar and salt both of which fight satiation fueling the brain to overeat.
We have plenty of food, but we've turned a large portion of it into unhealthy crap.
That's interesting-- I hadn't heard that sugar or salt might counter satiation. I have seen a bit of correlation between sugar intake combined with fat intake, though. Which makes sense some given fast food menu items (high fat food + a soda).
Do you have any links to papers about salt and fat counteracting satiation?
Right. Food insecurity need not be a problem for anyone in the 21st Century. It should be like running out of oxygen: nearly impossible because it's essentially free and widely available.
I can't understand in what sense you mean. Oxygen is so widespread in the environment that nobody has to expend any energy or resources to produce it, it is just there. Unlike food.
(This comment is not meant to argue for or against the position that food should be provided by the State. I'm just trying to understand what you mean.)