So what is money? Money is anything that acts as (a) a medium of exchange, (b) a measure of value, (c) a standard that can be used for credit or deferred payment, and (d) a store of value. Early coinage ticked each of these boxes.

Money also has the following properties. Money must be:

• Durable

• Fungible

• Divisible

• Portable

• Acceptable

• Scarce

The world you live in today is a direct outcome of advent of trade — of entrepreneurial humans recognizing that their lives can improve by trading with other groups who possess skills and/or resources that they do not. Making trade more efficient and effective has driven some of the most fundamental tools and advances we take for granted as modern humans.