Naudas esamība nav obligāta materiālo vērtību pazīšanai, vienmēr var takš iemainīt pret kādu lopiņu vai pārtiku galu galā.

Savukārt par 'hipijiskajām sabiedrībām'...

At least 20 percent of American men born between 1933 and 1942 had their first sexual intercourse with a prostitute. Now imagine that same young man twenty years later. The shift in sexual mores has given him a much greater supply of unpaid sex. In his generation, only 5 percent of men lose their virginity to a prostitute.

Freakonomics