Considering that modern humans have been around for roughly 200-300’000 years but the oldest known form of money / standardized currency dates back only 3000-2500 bce, what would today look like in a alternate reality where the concept of money was never conceived? Like I guess some form of “the market” has always been around, but still… what if?
Most likely it would be a barter system. Really money is just a standard system of value given previously. Theoretically a modern world without money would be if you ran a database for a farm in exchange for say 10 chickens a week and your rent would be say 12 chickens a month. Then you go around shopping for a new apartment but get denied because the apartment complex already get paid too many chickens and are now only accepting new clients paying in potatoes. So now you have to find someone willing to exchange 12 chickens a month for 200 potatoes per month.