Any kind of sense of where I am in a discussion. If you find the trn/slashdot/HN-style threading better than the 2D graphical layout then I doubt I can explain

Any kind of sense of where I am in a discussion. If you find the trn/slashdot/HN-style threading better than the 2D graphical layout then I doubt I can explain to you why I find it (the threading) lacking.