Greetings @ mandato
There is no doubt that money is fundamental to be able to have the things we need in our life, it is the unit of measure for the purchase or sale of any good.
To be able to pay for something in 2020 with a value of $ 100 and the same good in 2021 with a value of $ 180, means that money has lost its purchasing value due to inflation, where there is more demand than supply.

Thank you very much for sharing your publication.