Reply To: Chasimas Hatalmud: How did it come about?

As explained by the Rabbenu Bachaya above. starting with the words Verabbenu Hakadash, that for the chachmei hamishna, mishna scholars the gemora was obvious and did not need to be written down but for Revina and Rav Ashe it became necessary. It could be based on the phrase, syag lachachma shtika, the wise only say or write what is required for understanding.