How important is specialization?

Everybody likes to do a lot of things. But people are having the scarcity of time. I myself interested in a lot of studies, medicine, business, management, psychology etc. but i realized that I cannot study all of that because of the scarcity of time. There are 3 main reasons of why people cannot do all the works by himself (self-sufficient)

First of all, there are down-times whenever a person is changing a job to another job in a day. Let say when you study history, and you are really into it, then, you changed to biology. At the beginning of you biology study, you may experience the down time when you cannot focus much on you biology. after some times, then you can accept the nature of that subject.

The second reason is that specialization will bring much more benefit than you yourself do all the jobs. how could this happen? this is explained in economics books.

The last reason is that you will not be able to become expert in any work. let say if you have 5 digrees and then, what can you do with that 5 digrees? people won't hire you because you are not a specialist in any field. you will not contribute to that organization, whenever you try to give an opinion, there are people who are more specialized than you who could even give a better suggestion..

It is different if you specialize. you become more focus on that thing you specialize. you might even create new invention for the community. create new drugs, new surgical procedure, create new technology etc. If you specialize in economics or in management, you can contribute with your sevice as a consultant in managing the nation.

Imagine in your town there live 10 people, only ten people. then each of them is self-sufficient. Everybody makes their own window, their own bricks, their own tiles, roofs, cement the wall, install the roof, make drainage etc. The result is the houses your people would have are bad. everybody do the same works with little experience.

Now, think if everybody has their own specialization. you made the window, only the window, he make the roof, the other make tiles, doors, ceiling, pipes, drain, etc. The result is each product built is excelent because the person who create that product is now focused on doing only that thing. He might learn and improve his product 10 times more than he can before. the result is your town can improve its production quality and quantity much better.

However, it should be emphasised that even we are focusing on our profession, we must spare some time to read the books from social science. This is to make sure you can manage at least your home, your family, yourself and people around you. We dont want to have a doctor who have disasterous family, bad relationship with other people, greedy etc. The social science guide people how to use their expertise for the best benefit of all people.