What is money then?

MIt is, after all, a big delusion. It's all just numbers, printed on paper and stored on computers, assigned to persons and things like companies and investments, or, more precisely, additional records! To put it another way, just around $4 in printed-paper notes or coins exist for every $100 or its equivalent in any other money, while the other $96 exists as figures written on papers and computers in banks, enterprises, and other entities. We all trust in this system, which is why it hasn't collapsed yet.