This idea - that something "can't" be talked about in t - is a hump over which one must get, if one is to get anywhere in t. Imo. It's like the only place to talk about what can't be talked about that exists. It's like the only reason FOR its existence. Simply feeling that something can't be talked about is probably the cause of more problems than whatever it is that can't be talked about. It's not our embarrassment that started this cycle - it's how we were taught to stifle.