?? hmmm ... ?? so "classical scattering ..." dimensional theory example baez cooked up as ... ??? "classical" in "non-relativistic" sense ... ??? .... ??? so what _about_ relativistic version ??? ..... ?? is it problematic ?? ... ???? ...... .... ???? .... or suggestive ... ??? .... ?? or even more problematic ... ??? for dimensional theory philosophy in general ?? .... ???? ......