Do you think that there is some type of limit on how much much knowledge you can acquire and the amount of skills you can gain? I mean a lot of people are very knowledgeable in a single area but personally I don't think that you should limit yourself, it seems as if a lot of people put themselves into a box or let someone else confine them.
I don't believe there is a limit on how much you can learn or gain the skills for. I personally enjoy reading, using technology and gaining new technological skills, on the other end of the spectrum I also really enjoy going to the gym and have a taste for creative avenues. All these things are quite different but there is no reason why you can't gain the knowledge and skills for any number of fields as long as you put the time and effort in! You may be good at one thing but that doesn't mean you can't be good at others as well.
It seems to me a lot of people do put themselves into a box and believe that there is only one thing for them. Why can't a sports player also learn how to code? Why can't an accountant also be an artist?
The only obstacle is time, we can learn as much as we want. Every day we should aim to learn something new, even if it just small!