*20b-21a topics* - Baal Keri obligations/prohibitions - Contemplation & Speech *20b-21a questions* - How does the Gemara answer its rejection of Ravina’s claim that contemplation is the same as speech? - How does Rabbi Elazar answer the Gemara’s question that if contemplation is not the same as speech then what is the point of contemplating the Shema? - What is the difference between Shema & Birkat Hamazon and Tefilla? Why would a Baal Keri be allowed to continue to pray if he was in the middle of Amida but cannot say Shema & Birkat Hamazon? - What exactly was the Takana of Ezra regarding a Baal Keri on? Why is the Takana not held anymore?