Ciro Santilli @cirosantilli 37

It seems impossible to avoid the signaling server. With signaling server:

Games:

For numerical algorithms and to get a more low level understanding of the equations, we can expand all terms to the simpler and more explicit form:

S page 146.

TODO. I think this is the key point. Notably, $U(1)$ symmetry implies charge conservation.

More precisely, each generator of the corresponding Lie algebra leads to one separate conserved current, such that a single symmetry can lead to multiple conserved currents.

This is basically the local symmetry version of Noether's theorem.

Then to maintain charge conservation, we have to maintain local symmetry, which in turn means we have to add a gauge field as shown at Video "Deriving the qED Lagrangian by Dietterich Labs (2018)".

Forces can then be seen as kind of a side effect of this.

Bibliography:

A bit over the top, but convincing enough. A crypto-vampire show.

Of course those racist Nazis are a bunch of idiots, but how can you be surprised when freedom-of-speech focused tech gets used by them? www.theverge.com/2019/7/12/20691957/mastodon-decentralized-social-network-gab-migration-fediverse-app-blocking

Obviously, a few large instances dominate the user base for all practical purposes: kevq.uk/centralisation-and-mastodon/. And likely the network splits into hate-speech/non-hate-speech blacklist boundaries. And since the dominating closed networks will never lose user counts (???), the only instance that dominates will be the main hate speech one.

The flagship instance was mastodon.social and then in 2020 they closed signups for it and created a secondary mastodon.online.

The multi-instance thing is confusing and problematic. E.g. replies and likes might not show up across instances in some occasions: www.reddit.com/r/Mastodon/comments/ynt7ta/is_there_a_way_to_see_post_replies_displayed_on/

The "advanced interface" feature is bad. Really bad. MacOS file browser inspired.

The key initial quantum electrodynamics experiments:

Einstein for the theoretical explanation of the photoelectric effect from 1905, notably published as on a Heuristic Viewpoint Concerning the Production and Transformation of Light by Einstein (1905).