the problem of people that are not physicists commenting on physics.

I also noticed the problem of people that are not physicists commenting on physics. However I also noticed the problem with physicists commenting on physics. That is to say sometimes it is hard to decided who really is the top and who just seems like they know.

Take for example Husserl who knew Physics of his time well. But that did not put him into the same league as an Einstein or Heisenberg. So when t comes to commenting and understanding Physics from a larger picture it turns out that Leonard Nelson was probably a lot better than Husserl. Even though Nelson was not in fact trained as a physicist.
But that does not mean that Husserl was a crackpot. Rather it simply means one has to recognize his own level of experience. Not assume one knows more than he does. Too many smart people over estimate their own abilities. 

Whether in terms of learning Gemara Tosphot and Maharsha or whether in terms of Physics, I think that there is no question that both "Bekius" (fast learning) and "Iyun"(in depth) are needed.

Clearly Rav Nahman was on the side of going fast. Saying the words just once and in order and going on as fast as possible.  And clearly at Shar Yashuv [Rav Freifeld's in NY] and in all places founded on the Gra, the emphasis is on the in depth approach.

But to me it seems clear that the Mir in NY settled on the path of balance. The morning was devoted to "iyun". There that meant preparing for the class of the four roshei yeshiva. And their classes were in fact amazingly deep. The classes were much more than going over Rav Haim of Brisk or R. Akiva Eigger. For some reason the roshie yeshiva had a new idea to add every day. [It was akin to taking classes in Physics from Richard Feynmann or Einstein.] I assume that this was because they had spent all their lives up until about the age of 50 simply preparing. So by the time they became teachers they had plenty of new idea every single day to go into the depths of Rav Haim Soloveitchik. 

The afternoons and evenings were for fast learning.

Rav Avraham Abulafia

Rav Avraham Abulafia for some reason is not as well known as one would expect. On one hand his books were never published until a few years ago. But he was thought to be one of the greatest mystics of the Middle Ages and is quoted at length by the Remak and Rav Haim Vital.

[The fourth section of Shaarai HaKedusha of Rav Haim Vital itself was never published until recently but that is the section of his only Musar book that explains how to come to "Ruach HaKodesh" [the Divine Spirit] and it is based totally on Rav Avraham Abulafia.

אמונת חכמים ["faith in the wise"] is in fact an important principle for me, so I take it as an axiom to believe the wise. The only question is how to decide who comes under that category. [This great importance of faith in the wise comes from Pirkei Avot but is emphasized by Rav Nahman of Breslov.


[The basic story with Rav Abulafia is the well known event that he went to debate with the pope. The pope left orders that when Rav Abulafia would reach the gates of Rome that he would be arrested. But for some reason people that tried to arrest him died suddenly.]

So Torah is not meant to be a profession.

There is an important commandment to learn Torah. The basic idea is that when there there is another commandment to do that no one else can do, then one is able  to stop learning and then to do the other commandment, and then get back to learning Torah. ["Able" but not obligated according to the Gra]] Otherwise anything one does besides learning Torah come under the category of "Bitul Torah".[Not learning Torah when one is able comes under the category of כי דבר השם בזה הכרת תכרת הנפש ההיא הכרת בעולם הזה תכרת בעולם הבא עיין בנפש החיים ]

[However there is a large array of commandments that are in fact impossible to do by others. For example ונשמרתם מאד לנפשותיכם. פרו ורבו ויותר [watching your health. Having children, etc.]
There is however an important caveat [condition]--not to be making money by means of Torah. Using Torah for money does seem to detract from the value of the commandment. How much so is unclear to me. But in any case, it certainly is undesirable.

So Torah is not meant to be a profession. [See the commentary of Maimonides [Rav Moshe ben Maimon on Pirkei Avot chapter 4. לא קרדום לחפור בהם ... ואשתמש בתגא חלף.] [That statement of Hillel comes up in the first chapter of Pirkei Avot also but that is not where the Rambam put his long comment on it but rather in chapter 4.]

 So where  does Math and Physics fit in with this? I would have to say that they are in the category of learning Torah and are not just for Parnasa [making a living]. This I saw hints of in Rishonim like the Musar book Obligations of the Heart. But quite openly in the Rambam in Yad HaChazaka and the Guide.

F Major. French Horn, and Winds

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Torah scholars that are demons

The only person that I know about who noticed the problems with Torah scholars that are demons is Rav Nahman of Breslov. You would think that this ought to be well known. And also a well developed subject. But for some reason the whole idea seems to be ignored.

[Though you certainly find this in the Mishna and Gemara, still the subject seems to be unpopular].

In Rav Nahman the subject is brought up (LeM I:12 I:28 I:60 II:8 and lots of other places I forget off hand.] but without going into the subject in such a way that can give a person tools to discern.]

In tractate Shabat the sages said "If you see a generation in which troubles are coming upon then check the judges of Israel;-- for all troubles that come into the world only come because of the judges of Israel." [I forget the exact page number but it is towards the end.] The Mishna in Avoda Zara says that "The Prushim are the destroyers of the world". [ פרושים הם מכלה עולם].

Avi Ezri of Rav Shach. One section per day.

Even though there is an aspect of keeping Torah which is important, the problem is how to go about this is hard to figure out.
The approach which makes sense to me is to have a few sessions of learning per day.
That is the Avi Ezri of Rav Shach. One section per day. But go over that section every day for a few days in a row.
Also a session in Physics and a session in Mathematics. [Besides that secular subjects seem like "bitul Torah" to me.]

To me it does seem to make any difference if one has finished Shas before learning the Avi Ezri or the Hidushei HaRambam of Rav Haim of Brisk. It was the path in Shar Yashuv to dig into the depths Gemara right away without any waiting. However I do recall the the first year in Shar Yashuv was spent on catching up. Maybe some part of the second year also. But pretty much the idea was that if one does not learn right away "how to learn" [how to understand the Gemara in a rigorous and exact way]then one never gets it.