The correct answer to this open question is the following.
Leopold enjoys his life and gets excited about any new opportunity. He really enjoyed biology last year, so he proclaimed he wanted to be a doctor. Over the summer he had an opportunity to fly in a small plane, and promptly announced he wanted to be a pilot and study aerodynamics. Erikson would predict that this trend should continue as long as Leopold is in a psychosocial moratorium.
This term was coined by scientist Erik Erikson as he tried to refer to people that permanently are changing their identities and are looking for new things to do. As they do, they never chose one thing, in particular, to focus on it. That is why, in the case of Leopold, he gets excited when new opportunities bu he ner concludes one.