On another thread the three basic elements were identified as space, time, causality. Time is mentioned separately because it is different. Physics has taken to treating time as another spatial dimension, and that works in the equations but has nothing to do with time. Space, time, and causality are mentioned by Kant as being concepts we have within our power of reason rather than being anything actually 'out there.' We cannot know what things are in themselves 'out there,' which is exactly the point of the many various explanations offered in these threads. Most of the explanations begin with some metaphysics, which is the ground of the main distinction between explanations.
Right now it's space x matter x time = X and was having a problem with time. Space has three directions, matter has three dimensions, and time has three aspects, (future, present, and past). Now if I can come up with the three aspects of causality I can continue.