Elinor Ostrom was also challenging the received wisdom in her field of political science. Starting with her thesis research on how a group of stakeholders in southern California cobbled together a system for managing their water table, and culminating in her worldwide study of common-pool resource (CPR) groups, the message of her work was that groups are capable of avoiding the tragedy of the commons without requiring top-down regulation
Jews were told, through the dietary laws of kashrut, what was kosher (fit to eat) and what was not. That, in itself, put an immense social barrier between themselves and non-Jews. They were told that every male child must be circumcised on the eighth day after his birth. Not satisfied with the Ten Commandments of Moses, they were given no fewer than 613 mitzvot to observe.
Medical cannabis, or medical marijuana, is cannabis and cannabinoids that are prescribed by doctors for their patients. The use of cannabis as a medicine has not been rigorously tested due to production restrictions and other governmental regulations. Limited evidence suggests cannabis can: reduce nausea and vomiting during chemotherapy, improve appetite in people with HIV/AIDS, and reduce chronic pain and muscle spasms.
The way to think of pricing cryptocurrency is as speculation above some floor determined by the growth of the network according to Metcalfe's law. There are also various other metrics that probably correspond to price like the number of transactions, the number of wallets, and the hash power wielded by the network.
Some exchanges face banking issues and so can't hold fiat moneys. Instead they turn to a centralized cryptocurrency called Tether which is pegged to the price of the dollar. There are claims that this currency is not backed by real USD and that it is being used to manipulate cryptocurrency markets.