Keynesian dialectics, the Ukraine-Russia war, and the problem with amplitudes

What is a public documentation of half-knowledge if not something one can cringe about when looking back in a few years.

Motivated by a very real rule that made it tricky for me to invite a collaborator.

Let me start with a triviality. The amount and value of information any member of society possesses at any given point in time, is subject to fluctuation. Just like the amount of economic capital we have at our disposal is undergoing ebb and flow, so is the informational content we can lord over.

Corollary is that the flow of information, and its volume, is an ebb and flow.

All high brow nonsense, but let me apply this to the current situation. No particular perspective taken.

The first order of approximation is that we think the other side is doing bad, and hates us.

This applies to every side, however. The west hopes for a coup (which will be bad, at least in short term, for the Russian populace) or a humiliating defeat (which will be equally bad for the Russian populace). The Russian side hopes for a victory, an expansion of territory, and a reemergence of Russian might (which needless to say will be bad for Ukraine). Currently the signs point, mildly speaking, to a defeat of Russia.

And rightly so. Ukraine is fighting for its self-determination, nothing less.

The effect will be a further fracturing of the world. This applies not only to the present conflict, which serves merely as example, but equally to Israel (I remember vividly the first time I arrived to the country, and hearing from encounters of both groups that one could not talk to the other side because “they want to kill us”), the emerging conflict with China or many other examples.

That is not to say that more open people do not exist, in all walks of society (and I count my best friends among them). However, this may become an increasingly fringe viewpoint as not only the respective groups stay in their respective echochambers, but these partitions of the world become increasingly enforced with real and permanent restrictions (see the restriction of social media in some countries).

I feel that I woke up to a post-Covid world that will, for some time, not be open again. That walls were increased in height. And now, behind those walls, pressure will increase further until both sides will suffer an explosion. Or many.

The second order of approximation is that we realize the other side thinks we are doing bad, and that we hate them.

Hence the logical thing is to work anticyclically. In peacetime, one of the tasks of politics is to keep the peace. Now that politics is pointing towards a war of systems, we have to soften the blow. Decrease the pressure. And while my personal modus operandi is to circumvent rules I think are nonsense, there are much easier things that can be done.

This involves keeping lines of communication open.

It involves keep if only to fight with your friends and enemies rather than avoiding uncomfortable discussions.

And while boycotts can be measures that I support on occasion, I like to avoid boycotts of information. Because intel is the one thing that can decrease pressure.

(Unless you are boycotting me, of course. Continue at your own leisure. I have at best been described as weaponized incompetence).

Concretely, I think we have to keep communication to Russians open. Because many are trapped in an echo chamber (as everyone is. I learned only recently I should not use the idiom “jedem das seine” (german for to each his own, with a dark connotation) 😉 ). Because at the very least, while they may not be an empire anymore, a free discourse is welcome. So don’t only communicate to those whose mind is already open, but equally to those whose mind is not.

The current approach I would favor is to speak softly and carry a big stick. We are carrying a big stick, and Russia/Putin knows (the Ukrainians are pushing back the Russian Empire with sticks we made mostly 20-30 years ago, and their own which are even older). We are making that stick even stick even bigger and are putting quite a few thorns on it (which I am afraid will not only be necessary vis-a-vis Russia). That is necessary and good. However, many of them are caught in an information bubble that will invariably collapse, and the cost of the Russian populace will be dire.

Moreover, there is a strategic aspect. A Russia that collapses and is humiliated, but does not reform (either because Putin is still around, or because his successor is just as deluded) and that hence will be ostracized and excluded from Europe will inevitably fall into another domain of influence, most likely ending up a vassal state of some other power.

But to reform Russia, the reformers need support. And this likely cannot come out of the ranks who already support reform. Diplomatically, we have to extend an arm to those that are still caught in the bubble, but only stay there because there is no alternative. I think there is no convincing some of them, but one has to try with those in the middle from time to time.

There are many obstacles. And, if not taken so serious, there are many ways around them.

Fun fact: there was a lot of fun being made about Russia calling it a special military operation, rather than a war. Did you know that the last war congress declared was in 1942 against Romania?

(even if this was written in Amsterdam, I swear I am not high. Right now. Just a lil bit. חצי-חצי)

Nokron

None of these people are me, obviously.

“Housekeeping” a drilling, broken voice shrieked.

“You do the dishes, we do the squishes”

I was just enjoying the architecture of the bathroom. A bidet next to the toilet, opposing each other. No doubt useful to some insane architect. Not that I had anything to do here, my insides a burning mess, but empty now.

“Housekeeping” the voice, a second time. I do not know why he chose that part of the password as I realized I was wrong, and hurled away more of whatever little my stomach contained.

Continue reading

A fact and a consequence

I am currently visiting my friend Paco Santos in Santander, Cantabria, and things are off to a rocky start. As I enter his office, he challenges me to a duel.

“I hold a theorem” he says. And after thinking for a few seconds, he adds: “I am also holding a corollary about symmetries”

I am stumped. It is early, and I lack the mental fortitude of morning coffee. I have to think…

The answer: the vertices of the dodecahedron can be partitioned into 5 regular tetrahedra (these are the green diagonals).

Now, you can use this fact to compute the group of symmetries of the dodecahedron! Well, clearly you can take the vertices of one of the tetrahedra to itself. That is the alternating group A_4. But you can also take any tetrahedron to any other tetrahedron, leading to conjugate copies of the same group. Those are 5 copies. Hence, what you obtain finally is the alternating group A_5.

Oysters, cold bathroom floors, subversive energy and other things close to my heart

As I still suffer from the aftermath of that oyster adventure (or i got something more chronic, who knows) let me ask a question to my friends with the more useful variant of a doctor title: where do I get an adult sized incubator? A refurbished iron lung, perhaps. Something snuggly and warm.

While we are at it, can we all agree to make bathroom floors warm? Seems like a design flaw in that moment when there is not enough strength to remove ones head from the porcelain throne and crawl away. Not that I would not have been back every few minutes.

Also: My research group does incredible work. But some moments make me more proud than others. Like when they inherit just a little criminal energy. Standing at an airport, having to switch my sim card, I had to think of that wise council one of them gave me: go to the jeweler, and pretend to try out earrings. Those little pins are damned useful to get that tiny compartment open.

Love you all. Incredibly proud. Next I am going to teach you about Igusa zeta functions and how to topple a government using cherry-flavored cupcakes, a ballpoint pen and peppermint schnapps. But first something about stringy cohomology! 🥰🍒🖊🥃❤️

Ceterum censeo Carthaginem esse delendam.

Kustin-Miller unprojection, degree maps and post-nuclear relationships of the future

Dear Diary,

yesterday I heard an amazing talk by Eva Philippe and I will get back to that, as well as related questions I am thinking about with Sergey Avvakumov (who is on the market btw., though I do not expect trouble there cause he is doing great things) and Mark Berezovik (who I got to Jerusalem to finish his masters in exile. Study in exile. Interesting that we do that again).


Anyway, dear diary, it reminded me of something many years in the future.

You see, in 35 years I am going to sit my second grandchild on my lap. The bright one. She was always the bright one. So many questions.

And so, after helping my first, my grandson, build a gauntlet for the mutated squirrel warriors, I will sit her down. Spit the iodine tablet into the bucket and sigh, thinking about the best advice. She is starting to get interested in relationships, and she is asking me.

“Grandpa, I want to ask about pairings”

she begins, and my bioengineered squidheart sinks. Not that one.

Continue reading

Inspiration in abstract science, metric spaces of metric spaces and stability of numerical algorithms

Two revelations from yesterday. First, my anonymous friend M (don’t want them to get pestered with inquiries yet) gave me a draft of a novel so delightfully full of cool ideas that I could not reading even as I was driven along a serpentine mountain road. The revelation, apart from the obvious conviction of their genius, was that my stomach could not handle it and I felt like hurling the contents of a fine dinner over the beautiful scenery. Though really I should have known that from experience. Sidepoint: we are watching DEVS nos, which apart from hammering metaphors in with a sledgehammer, is not bad.

Nick gets it.

Second was that I kept thinking about a friendly interrogation that Stephen Yang of this post conducted on me, asking me to what extent we incorporate the real world experience in abstract science, or whether we are completely removed from it. (I also invited him to Jerusalem almost immediately, looking forward to your visit!)

I had two immediate answers for him: One is indirect, in that nature (in the sense of everything not inside the mind, so maybe the outside world would be a better term), at least for me, acts as cleaning current, flushing out the noise of repetitive thoughts that accumulate in creative thinking by overwhelming the senses.

Continue reading

Many more than seven veils

As there is a short break in the opera and Jochanaan may have a brief chance to leave the building with his head where it belongs, I reflected on the final report for my first ERC grant I submitted recently. I felt a sentiment of immense pride when wading through the collected works, amazed at the diversity and depth of ideas and results that my group members produced, ranging over different areas so beautifully that I had trouble summarizing them. From entropy and secret sharing (I already mentioned this) over spectra of groups to combinatorics of manifolds, from embeddings and simplicial depth and Lefschetz to resolution of singularities, I probably forgot most of it. I think I will have to devote more posts to what resulted, and to ongoing projects still rippling forth from it.

That said, very proud to have had the opportunity to work with all of you! And excited to see what comes next.

Just an appreciation of art: Stephen Yang add Alef’s Corner

Three artist friends I wanted to appreciate here. I lack the words of a smarter (wo)man, so I will let the images and links speak for themselves. First Stephen Yang who makes me impatient for my travel to the east coast. Most of his photographs depict the miracle that is New York (though he also captured Henry Kissinger and Tahrir Square), although the city being the city, it could just be any part of the world and none at the same time.

J’Ouvert celebrations in Brooklyn

Second, there is a secret friend of mine who is more shy about his identity. Depicting another friend of mine who is not so secret about his identity.