For every good thing you love ask yourself what your proper dose is. - Kevin Kelly

If goods and services become more valuable as they become more plentiful, and if they become cheaper as they become valuable, then the natural extension of this logic says that the most valuable things of all should be those that are ubiquitous and free.

Nearly every aspect of modern civilization has been flattening down except one: money. Minting money is one of the last jobs left for a central government that most political parties agree is legitimate. It takes a central bank to battle the perennial scourges of counterfeit and fraud. Someone has to regulate the amount of money issued, keep track of the serial numbers, ensure that the money is trusted. A robust currency requires accuracy, coordination, security, enforcement — and an institution that takes responsibility for all those. Thus behind every currency stands a watchful central bank.

In all things—except love—start with the exit strategy. Prepare for the ending. Almost anything is easier to get into than out of.