Reply To: Chidushim on Daf Yomi Shabbos 30

שבת קנו,א

There is an argument if Jews have a mazel. The one whoi holds they do, says that mazel determines their fate and nothing (tefila, or zechusim) can change it such that they must play with the cards they were dealt with. The other who holds that there is no mazel says that tefilla and zechusim affect the mazel, therefore they are not fated and they can change the cards they were dealt with.