The amount of body fat and ways the body stores fat are highly uncorrelated for people who are not severely obese, and severe obesity itself might be made worse over time by high levels of visceral fat.
Very telling that even top economists are unable to imagine a world without a reserve currency when that is the state of nature (even in antiquity there were multiple currencies, not just gold)
People didn't use to use the phrase "inter-disciplinary" until late in the 20th century because before that there was no taboo against applying skills in one domain in another