I am an classic INTP. As a self-actualized being, I have learned to utilize all of the functions in a harmonious way, such that even my Inferior function (Fe), is being activated at a high level. I have also unlocked my ENTJ shadow which allows me to get shit done in external reality. A lot of the time, INTPs get stuck in there heads too much to the point of being unproductive externally, but once you activate your ENTJ shadow (who have Te as their first function), you become ambitious as fuck and you have the raw intelligence (that comes with the territory of being an INTP) to back it up. So, now, and with any self-actualized INTP (as Leo is one himself), we can make monstrous changes to the world, and change it for the better. Einstein himself was an INTP.