A Guest Post By E. Fink
Today was Shushan Purim so in Jerusalem they celebrated Purim today instead of yesterday. Except most American Yeshiva bochurim / Kollel fellows I know of, celebrate Purim outside Jerusalem on Purim and then celebrate a second day of Purim in Jerusalem on Shushan Purim.
I don't think this was the intent behind Shushan Purim.
I have a younger brother who is learning in Kollel in Israel. After 5 years of intense post marriage Torah study. He is a bona fide Talmid Chacham who is serious about his learning and avodas Hashem. He doesn't "play games" and is making the most of his time in Kollel. He doesn't take vacations, he doesn't spend time drinking coffee, he doesn't skip minyanim, he doesn't throw rocks at cars on Shabbos. He's a really good guy.
Anyway, he and his friends spent Purim in the Beis Medrash seeing as it was not a holiday in Jerusalem. He celebrated one day of Purim, on Shushan Purim.
That's the right way to do it.