Oh, I agree. I am busy evaluating exactly that. But I will point out that a large fraction of the techniques taught here have to do with how to communicate clearly, rather than simply how to think clearly. One presumes that the reason we wish to communicate is that we wish to be understood. If certain "personal characteristics" (I mentioned passion and etiquette) either promote or interfere with successful communication, then I think that both sender and receiver have some responsibility to make adjustments. In fact, in a broadcast model, with one sender and many receivers, the onus of adjustment lies mainly on the sender. [Edit: spelling]