Uh, crazy, I think. From his "all physicists are crackpots because nothing can move in spacetime" page (http://www.rebelscience.org/Crackpots/notorious.htm):

"Why is motion in spacetime impossible? It has to do with the definitions of space and time and the equation of velocity v = dx/dt. What the equation is saying is that, if an object moves over any distance d x, there is an elapsed time d t. Since time is defined in physics as a parameter for denoting change (evolution), the equation for velocity along the time axis must be given as v = dt/dt which is self-referential. The self-reference comes from having to divide dt by itself. dt/dt always equals 1 because the units cancel out. This is of course meaningless as far as velocity is concerned."

definitely crazy. http://www.rebelscience.org/Crackpots/nasty.htm This is his page where he claims all of physics is wrong.