Curiosity is that treasure hunt which is the first thing a new born learn without anyone's guidance. Being a curious is an art. An art which depends on one ability as how much he or she can think and ask about any particular topic.

There are different personalities around us and each personality have thier own limit for curiosity.

You must be thinking how's is it possible.

But it is possible.

One personality might only think and care about that topic but some other personality might want to know everything about that one particular topic as in specialization such as  (origin, what, when, how, where etc).

After observation of some duration, you will be noticing that personality who choose to get information only about topic as in general is less curious in that topic or might end up getting less ideas but personality with more curios mind who has asked Question which even no professional has thought and end up getting abundance information which increased his or her knowledge.

Thus, it is advisable that one must not think that thier curiosity is silly or stupid. You must ask question whether it's possible or not. Even if there might be possibility that you will be criticized but it is none better than stopping your curious mind.