Without going into detailed energy/mass relations as simply exposed (symbolical!y) directly visible in all equations of iSpace theory, let me show why especially root(2) is here a prominent natural ingredient: it has direct natural exact algebraic relation to the integer number 10 (ten):
10 = ((2 * GoldenRatio * root(2) - root(2))^2
As this relation is exact (as is iSpace theory with respect to error bar := 0 (zero)) it shows how only perceived continuous energy is actually also fully discrete in the sense of LEGO style exactness, even when energy gets converted from (electron) mass to light (photons, neutrinos).
With the number 10 just prime factor wise 2*5 and 5 easily and naturally relate to GoldenRatio (1,61…) it is by now clear (to me) how the QED related recursive processes are strictly identical to integer exactness of iSpace theory - able to exactly derive most but all constants of nature from simple multiplicative only integer geometric entities like Euklidean-Pi, GoldenRatio and the derived quantum of time to be 1/6961 iSpaceSecond in iSpace-IQ unit system - the first able to do away without any human artefacts whatsoever.
Christian G. Wolf , It's certainly a kinetic energy equation. We just need to establish the physical context. The absence of the half factor suggests compressed orbits, as in orbits that are not based on a balance between an attractive force and a centrifugal force, but rather like in the case of the tiny compressed orbits that make up the luminiferous medium, where the balance is between a centrifugal force causing each individual orbit to strive to expand, but where the surrounding orbits, also striving to expand, are all pushing in on each other, hemming themselves in. The speed c will be the circumferential speed.
This has been dealt with in detail in this article,
The 1/2 factor in above equation might indeed have nothing to do with some hypotized (or maybe implicitely suggested by the question) superluminality, but rather some mechanism related to Thomas precession, as @Preston Guynn was able to decently show (let alone remark in dozens of related questions like this before):
Article Thomas Precession is the Basis for the Structure of Matter and Space
I have recalculated his equations with iSpace theoretical methods, and while I do not agree with all of his geometric arguments, the numerical precision of its output is indeed extremly impressive (for some really simple relativistic induced factors leading exactly to 1/2 of the cirumfence length).
Christian G. Wolf , It's certainly to do with rotation. Precession is something that goes on too in that context, but the rotation is enough to account for the centrifugal potential energy, mc2.