something about ... ??recurring discussions with baez about something about ... confusion and/or culture clashes (??especially math vs physics ?? ...) about "covariant vs contravariant" .... (??something about "daylight savings time" and "active vs passive" and "heisenberg vs schroedinger" and so forth ...) ... ???something about extent to which we may have consciously mentioned something about "unremoveable carpet-lump ("has to go somewhere / somewhen") op in yoneda embedding" in this connection ... ??or something...