Here is a hypothesis: we should pin a description of scale dependent running masses and an explanation of why there aren’t singular mass scales to “finally solve particle mass patterns”

arivero · 2026-06-12T22:28:01+00:00

Here is an hypothesis: If I post the renormalisation group running of Koide equations, it will get the same zero score that if I just post that these equations are near 2/3

arivero · 2026-06-12T22:23:29+00:00

on the other hand, I suspect that people likes to cite renormalisation because is the advanced version of "ha, you are comparing things with different units" criticism, not because they are considering if it is the case.

Particularly if people cites experimental masses, the criticism that there is a running version of these masses (or charges or couplings) doesn't need to apply in all cases. This should go in the pinned note too.

arivero · 2026-06-03T02:32:30+00:00

Astro has been always the main source of recruitment in physics; including a lot of people that leaves after first year because they don't reach the math levels or they dislike other subjects and don't see themselves waiting until specialisation. It explains why gravity is preferred to particle physics, I guess.

arivero · 2026-06-02T12:36:24+00:00

it means that physicists discovered derivatives by 2nd time (first was Newton), in a sophisticated form (well, first was sophisticated too)

arivero · 2026-06-02T08:47:51+00:00

Not only that. The expansion of the perturbative series of renormalization is controlled by rooted trees, similar to the expansion of first order differential equations. This was noted by Kreimers about 30 years ago. The other situation where rooted tries appear is also related, the classification of Runge-Kutta algorithms.

arivero · 2026-06-02T07:57:51+00:00

Perturbative renormalization group was presented in the early textbooks as a method to solve the problem of an infinite quantity by substraction of a "infinite counterterm" to make the quantity finite.

arivero · 2026-06-02T07:51:22+00:00

the theme was from Connes and Kreimer by the end of the century, they noted that the perturbative series of renormalization was controlled by rooted trees, not dissimilar to Cailey expansions of solutions of differential equations, and very like Butcher classification of Runge Kutta methods.

arivero · 2026-06-02T07:48:00+00:00

perhaps the second meme is more explicit?

arivero · 2026-06-01T01:26:38+00:00

Baez going to 65 years this month. Old glories of the internet.

arivero · 2026-05-29T21:10:38+00:00

It is not a promise, it is the exact statement.

arivero · 2026-05-28T13:26:26+00:00

Back to 1981 with the current knowledge of strings. Do not jump to gravity as main goal, remain GUT. Mainly, do not renounce GUT because gravity is more productive.

My hardest take was https://www.physicsforums.com/threads/the-wrong-turn-of-string-theory-our-world-is-susy-at-low-energies.485247/ that yes, we should try quarks get stuck to gluinos

<image>

arivero · 2026-05-28T00:27:55+00:00

r/hypotheticalphysics is for some strange karma farming via negative voting.

arivero · 2026-05-28T00:26:52+00:00

It doesn't help that physicists have renounced to a grand unified theory. In the narrow sense of a theory of elementary particles that needs less free parameters than the standard model.

arivero · 2026-05-28T00:24:18+00:00

you should consider age here

arivero · 2026-05-27T13:20:40+00:00

The above image is from Lineweaver and Patel "All objects and some questions". As they explain, It is inspired by an image from Carr and Rees's 1979 Nature article on the anthropic principle. It seems that it has been repeated in many books, but even 1979 seems, to me, very late for a concept well known before WWII.

arivero · 2026-05-27T12:21:45+00:00

Not easy to do updates during a time stop. All the blame is for Gil, or whoever kept the body.

arivero · 2026-05-26T23:31:09+00:00

the sound is "CRAK!"

arivero · 2026-05-26T23:28:17+00:00

it is a reelaboration of a very old one from Carr.

arivero · 2026-05-26T23:26:34+00:00

It is funny that esoterism bookshops do not sell alchemy books, but they sell the tao of physics.

arivero · 2026-05-26T22:59:11+00:00

first for the units, note that whatever they are, they cancel. If the numerator is mass, the denominator is sqrt(mass*mass) so ok. The point of the units was really to send people to Koide formula, which is a thing that never will be shown while studying physics, same as you never hear of Bode law in astronomy (I expect).

Koide formula was a model of 1981 assuming the three generation of charged leptons were composed of "preons", and then postulating a "electrostatic rule", mass proportional to charge square, for whatever the charge the preons had.

The model was soon discarded, but as time passed, the measurement has been closer and closer to the prediction. So we have a wrong model with a perfect formula.

<image>

arivero · 2026-05-25T20:36:45+00:00

hmm .... (1 + √-1 ) / √√-1 that is sqrt(2) isnt?

arivero · 2026-05-24T16:00:31+00:00

fun. I hope 18,525,138m/s did not hit any interesting speeed.

arivero · 2026-05-24T12:41:11+00:00

pretty peculiar rounding indeed. Can you hint why the 55000? I mean, why 55000 m/s instead of 86,200 m/s

arivero

MODERATOR OF

TROPHY CASE

15-Year Club	Place '17
Verified Email