Main Question or Discussion Point
Since energy units are J = kg (m/sec)^2, and this quantaty is discrete, if one of the units is continious, then it can be either irrational or rational number and could make J any irrational or rational number as well. In other words for every real number n of a unit in continuum there is a number J such that J is also real. That is contarary to the supposition, for then J is also going to be in continuum . Thus mass, distance and time all have to be discrete.