Today I wen't to my University to work on my thesis, after working a bit and printing some drafts I suddenly thought I should go to the universities atrium and just try to play the piano which is located there. At this point I have no idea how to play the piano [I know how to play the guitar, but never really gotten in the music theory]. So I went, there wasn't a lot people around so while trying to come up with some playing, pushing the keys as softly as possible, so nobody would hear how awfully I play, I actually suddenly got it. Continued, continued my basic improvisation and in a matter of one hour I realized I can easily play the piano.
Some people even came and complimented how good I am playing.
This was a huge surprise for me. Now I can say: "I play guitar and the piano."
Has anything like this happened to any of you dear fellow INTJ's? When you suddenly realize that you have a skill you did not know about before.
Actually I just remembered other cases from life with the same way of acquiring new skills. They are: programming and unicycle riding.