Over tens and hundreds of thousands of years, we evolved to find certain things stimulating, and as very intelligent, civilized beings, we're enormously stimulated by problem solving and learning.
Kroz desetke i stotine tisuća godina, mi smo evoluirali tako da nas određene stvari stimuliraju, i kao inteligentna, civilizirana bića, mi smo nevjerojatno potaknuti rješavanjem problema i učenjem.