Yanis Varoufakis is an economist and was a minister of Greece. He’s not the only one banging on about tech platforms being a neo-feudalism (here from an economic perspective).
The author of the linked article researches wealth and the economy. He discusses where the bulk of growth is coming from (in stock market) and some of that’s growth dynamics.
My college degree is in Applied Math. There is another level: if the axioms are broken whatever is built on them is garbage.