Well yeah - Our ancestors did some things on their own and yet they didn't make the progress we make today. Of course we have to think in relative terms here but still ... If you look at it from this point of view: Every person has other strenghs and flaws and so if we work in a group of specialists on - let's say a mysterious crime case - the case will be cracked way faster than if one person has to try to solve it alone - 'work on his own strenght' ...

Additionally you can't just internalize new strenghts! Of course you can learn things to a specific degree but many people specializing on different things will help community more and that's what counts in the end. And if we're not talking about mankind but about individual people I just ask you one question: Would you want to have to make your own tools and not be able to learn what you really want, or would you like to buy tools from someone who knows how to make them perfectly and concentrate on your life?

Thanks - that's all ;)