That emerge has a second phase - as one side is 2nd order and the other side is first order, time and space are not of the equal footing. To be compatible with

That emerge has a second phase - as one side is 2nd order and the other side is first order, time and space are not of the equal footing. To be compatible with special relativity where time and space are on equal footing one has to … this line of thinking generate the quantum field theory. Still, if I remember correctly he is more onto differential equation. Later a physics PhD wants deeper or via different path or many lathes. Instead of light know the shortest time, light just goes all paths and we integrate the result. Philosophically it is the integration first approach of Leibniz vs the differentiation first of newton. Or that in his theology God see all paths and find the best for us. Except it is not God. And all pathes are going (except due to phase only some will be observed. Btw, these two line of thinking is so different one can easily see - if you see tangent line/plane etc you see it is possibly Newtonian approach. See general relativity or certain formation of the Qft. If you see integration and many paths, you use Leibniz approach. See Qft in its current form.