“Money! Money! Money! Must be funny, in a rich man’s world.”, ABBA already told us so: money is not divided equally and therefore means different things to different people. 100 euros can be a lot of money for one, and pocket change for someone else. The value of money differs per person, but also changes in itself. Why do you pay 3 euros for bread from a bakery instead of 15? And how does inflation even work?