Well, I was originally discussing the merits of just making the MBP screen touch friendly (using current technology) rather than the half-step of the Touch Bar. Why corral touch to just a tiny, sub-screen, if the touch is useful enough to add the bar in the first place? Again, my fascination here is primarily with the people that like the Touch Bar but don't think a Touch Screen would be useful, given how important it was to the original iPhone that the whole thing was touch capable. If the Touch Bar is useful, then a full touch screen would be surely be more useful?

From that perspective a touch screen, even with current technology, is still more bandwidth than no touch screen at all and more creative than no touch screen at all... I'd argue that does get us somewhere useful.

I don't think the onus here is on me to provide examples of how useful that may be, but on you to explain why perfect is not the enemy of the good, in this particular case.