Wouldn't it be great if some huge solar flare destroyed all electronics?

Big cities would starve out in two to three weeks, or they'll leave the cities and encounter people armed in rural areas.

The joo would lose all their fake money, well, besides the gold they've stolen from everyone over the centuries.

Galactic rotation can be described by "Conspansion" from the CTMU. Conspansion (contraction qua expansion) is the inversion of an "expanding" universe, namely a static system with "contracting" content. Conspansion is already unwittingly observed as the "collapse" of quantum particles, yet is a more general process applying to all content (objects and time scales) of the universe.

This scenario is general, applying even to macroscopic objects consisting of many particles of matter; the higher definition of the worldlines of macroscopic objects can be imputed to a higher frequency of collapse due to interactive density among their constituent particles. C.M.Langan, CTMU

... because the rate of shrinkage is a constant function of a changing size ratio, the universe appears from an internal vantage to be accelerating in its “expansion”, leading to the conspansive dual of a positive cosmological constant. C.M.Langan, CTMU

This couldn't be simpler, but it's like trying to explain Heliocentrism to a flat-Earther. The clowns of Physics today couldn't be more like their Dark-Age Scholastic counterparts.

Einstein's biggest blunder was the "cosmological constant", ie the misapprehension of the "acceleration" of the apparent expansion of the universe. The same "Conspansion" model explains both accelerated expansion and acclerated rotation of galaxy edges. The CTMU is the remedy, but the new Renaissance is currently on indefinite hold.