Genady

This is a direct opposite to the truth. In the 1905 paper where Einstein has introduced SR (einstein_electrodynamics_of_moving_bodies.pdf (umd.edu)), he has started with this exact problem: Then he has solved this problem by including the time taken for the light to travel from position to position in the definition of simultaneity:

Aren't static, charged BH perfectly spherical, too?

A bigger problem that this parable does not mention is that soon a businessman will come with a big fleet and will kick the fisherman out of business. Then the fisherman will have to work for the businessman and will not have time to sleep late, etc.

No problem, although it's a bit complicated. I assume you mean ethnicity rather than ethics. My grandparents on the father's side ran away from pogroms in Belorussia and eventually settled in Baku. My father was born in Baku. My mother's family, including my mother, ran away from advancing German army in Ukraine, in the WWII. They too settled in Baku, after running around for some time. All the great-grandparents were Jewish, but starting with the grandparents, none were religious. My grandparents spoke Yiddish and Russian. My mother spoke Ukranian and Russian. My father, some Azeri and Russian. My first language was Russian, although I remember some words and phrases in Azeri. So, I'm not sure what is my ethnicity. Also, Baku, at least at that time, was a very cosmopolitan city. [Perhaps, the later part of this thread should be moved to The Lounge forum.]

I remember learning about Sabir in school. Also, Sabir street in Baku. I have been to Shamakhy, Sabir's birthplace, but not because of that, but rather on a tour to Shamakhy Astrophysical Observatory - Wikipedia. Are you Azeri?

Seems rather biological than social, especially if hormones are a factor. It could've been social if others communicated with baby girls somewhat differently than with baby boys, but is it so?

Ethnically, no, I'm not.

Yes, certainly. But, (As I said above to Saber, )

I am very sorry to hear that. BTW, I was born and grew up in your vicinity, in Baku, Azerbaijan. That was many years ago, though. Good luck.

Yes, here is the conclusion of the review article linked by @iNow above (Sex differences in early communication development: behavioral and neurobiological indicators of more vulnerable communication system development in boys - PMC (nih.gov)

"The leading clock lags" is imprinted in my brain since my very first class in SR

A different study. Interesting reading. Certainly. If not structural dimorphism, what these differences in development are attributed to? Gene activations, chemistry?

I only started reading this: and saw references to the differences in other communication skills and behavior. Are there other areas of such differences, not related to the communication?

Is it supported by evidence that girls usually start talking earlier than boys? (It was clearly so in my children.)

To all concerned. I've used Google translate to check how English posts in this thread read in Russian and how the OP translated posts could've looked originally in Russian. Unfortunately, the pragmatics of the posts are mostly lost both ways. IMHO, this kind of discussion does not make any sense.

Evidently it is a translation error. I did not say this. And I don't know what it means.

In what way? By affecting properties of the material? Then it does not count Or something else?

Yes, I agree with all this. It explains correlation between age and chances of changing one's beliefs. It does not show a correlation between age and ability to change beliefs. Yes, it does. 1. Are career politicians or businessmen or religious leaders, a representative sample? 2. I don't have the data. 3. Not very rare, I think. Moshe Dayan, Putin, Sakharov, etc. 4. Even if it does not happen often, where is a correlation with age? I mean, it does not happen often in any age, then.

What does make you think that ability to change one's beliefs decreases with age?

I thought it is rather a pure state (as opposed to a mixed state), but not an eigen state. Is it correct?

May I suggest a correction? Three versions of every fermion rather than every particle.

@Saber, can you think of any other physical effect that could affect the process you've described? (Even if it is purely theoretical and does not occur in practice.)

Without rotation and other affecting bodies, the outcome depends on 3 factors: material of the planet, mass of the planet, and time. Any other?

The line of comments above brought memories of this sketch:

If the material of the planet is fluid, yes.