I am going to put my hand up and confuse that I am indeed a Know-it-all, but I am in a way. The thing is it is not about what I know from memory, although I am pretty good at that, it is about the fact I am always been very good at using Google to find exactly the information I am looking. As a result, many friends always come to me if they want to know something fast and precise.
Knowledge is power and we live in a wonderful era where the knowledge is so easily available for people to find. Things still need researching but the speed in which this can been done is incredible. I am also very honest to say when I do not know something but I will quickly find out about it.
If there is a will there is a way if you have the knowledge and skills to find out and so this is why I believe anything is possible.