Would you say the same for the number of dimensions? :-) BTW, related to your idea... IIRC, Schuster and Toro had some work using continuous spin particles (ju

Would you say the same for the number of dimensions? :-) BTW, related to your idea... IIRC, Schuster and Toro had some work using continuous spin particles (just a special representation of Lorentz algebra) with a similar motivation. Can’t recall the details right now, but feel free to check out their papers/talks. PS: To all the uptight commenters pooh-poohing parent... relax, and lay off it... this is a legitimate research question/direction that physicists think about. We just don’t have satisfactory or appealing answers yet.