|Physicists would dearly love to study this foam but there’s a
problem. Spacetime only becomes foam-like on the tiniest scale, at
so-called Planck lengths of 10^-35 metres or so. See: How to Measure Quantum Foam With a Tabletop Experiment
It’s difficult to see that while seeing the larger view of a Lagrangian of the universe is to see such an experiment located “as part and parcel of the variance in determination of the strength and weaknesses of that Lagrangian.” So you drive the focus down to the microscopic, and then to ask, in what case has the photon‘s journey been of value in the ascertaining the distance and time, of that photon’s journey? Just trying to orientate perspective in the case of Lagrange, yet we see on the macroscopic that it works.
It is to orientate the thought experiment in the direction of a determination of value when assigned to Lagrangian and its limits at minimal length. A phenomenological question then about that environment with this application.
On another note then being respective of the drive toward understanding using Higg’s,”The solution is to make the equations more complicated and introduce a
Higgs field, which, once it is non-zero on average, can give the electron its mass without messing up the workings of the weak nuclear force.1