Tuesday, October 28, 2025

Performer and audience, heartbeat in synch: Yuja Wang performs Rachmaninoff {Bonus: Music and tears]

Janet Horvath, Musicians in Sync – What Yuja Wang’s Heartbeats Tell Us, Interlude, December 7, 2023.

During the 150th anniversary of Rachmaninoff’s birth, pianist Yuja Wang undertook an extraordinary feat. She performed all the Rachmaninoff Piano Concertos and the Rhapsody on a Theme of Paganini in one marathon concert at Carnegie Hall on January 28, 2023. Wang appeared with the Philadelphia Orchestra and Maestro Yannick Nézet- Séguin. The audience was treated to a four-hour program, with two intermissions, consisting of 97,076 notes and 621 pages of music. But who’s counting? It turns out that noting the numbers was part of the evening. Wang was asked to wear a device to track her heartbeat during the concert, and so did the conductor, nine members of the orchestra, and six members of the audience. The results of this experiment are quite extraordinary.

Read the whole article at the link, which includes excerpts and graphs of heart-rate. This is a link to a number of articles and videos about the concert.

* * * * *

From tonebase Piano:

What Yuja’s Rachmaninof marathon reveals about the miracle of live performance.

Hosted, written and edited by Robert Fleitz ‪@RobertFleitz‬

In January 2023, Yuja Wang performed all four Rachmaninoff piano concertos and the Rhapsody on a Theme of Paganini in a single evening at Carnegie Hall — a feat once thought impossible. But this concert was also an experiment. Yuja, conductor Yannick Nézet-Séguin, members of the Philadelphia Orchestra and audience all wore heart-rate monitors, revealing the invisible instrument at the center of it all: the human heart.

In this video, Robert Fleitz explores what Carnegie Hall’s data revealed — not only about Yuja’s extraordinary focus and endurance, but about the shared physical and emotional pulse that connects performer and listener. Drawing on insights from Juilliard performance psychologist Noa Kageyama, choreographer Martha Graham, philosopher Maurice Merleau-Ponty, and pianist-teacher Seymour Bernstein, the film asks how art lives through the body, and what it means to face our own limits in sound.

The story widens beyond Carnegie Hall: Clara Schumann’s journals describing the physical toll of constant touring, Rachmaninoff’s lifelong stage fright, and the tragedy of pianist Simon Barere, who collapsed mid-performance in 1951. From those histories to this year’s Chopin Competition — where a young pianist broke down in tears mid-performance — the through-line is clear: the greatest performances touch the limits of the human body.

Featuring performances by Nikolai Lugansky and materials from Carnegie Hall’s report on the data, this film explores how the heartbeat, the body, and the audience’s breath all become part of the same living organism — and why that fragile aliveness may be the real miracle of performance.

⌛ CHAPTERS ⌛
0:00 A cold night at Carnegie Hall — January 2023
0:23 Yuja Wang takes on the impossible
1:09 Rachmaninoff’s concertos: a marathon for one pianist
1:30 The hidden instrument: the human heart
2:09 Taming the body — the pianist as cowboy
2:46 “The mood is gone.” When control meets chaos
3:05 Coughing fits and breakdowns at the Chopin Competition
3:24 The delicate, dangerous art of live performance
3:56 What Carnegie Hall’s heart-rate data revealed
4:31 The shocking calm of Yuja’s Rach 3
5:08 Heart racing in the Fourth Concerto
5:40 The science of learning, memory, and adrenaline
6:25 Lessons from Lugansky, Avdeeva, and others
7:20 “It’s not just intellectual — it’s biological.”
7:55 Schumann and Rachmaninoff at the edge of their limits
9:05 Simon Barere’s final performance
9:45 The Romantic obsession with suffering
10:12 “There is only one of you in all of time.”
11:14 Profound data and deeper questions from Carnegie Hall
11:40 When performers and audiences breathe together (feat. Lady Gaga)
12:07 Yumeka Nakagawa’s tears at the Chopin Competition
12:25 The miracle of performance
13:24 “Unable to stop smiling.”
14:08 tonebase biggest offer of the year
15:20 (Yes, we can do jokes here.)

Thursday, October 23, 2025

Turning Point in the early morning

Rebuilding Corporate Research for a Stronger American Future

Tsao, Jeffrey, Beyond the Endless Frontier: Rebuilding Corporate Research for a Stronger American Future (October 13, 2025). Available at SSRN: https://ssrn.com/abstract=5600892 or http://dx.doi.org/10.2139/ssrn.5600892

The American R&D enterprise, long considered the global gold standard and a cornerstone of national security and economic competitiveness, faces mounting concerns regarding its productivity and societal relevance alongside intensifying international competition. In the meantime, a powerful component of that enterprise that, in the 20th century, helped create the science and technology foundation for our 21st century world lies dormant. That component is corporate research labs: labs that uniquely excelled at research embedded in real-world problemand-technology-rich use environments but curiosity-motivated to learn and discover with ultimate benefit to broader society. Here, we sketch a complete, though still evolving, vision for corporate research, its importance to a healthy R&D enterprise, and how we might rebuild it in a 21st century public-privatepartnership form. We refer to the vision as the "Bell Labs Xs" vision, to signify that there would be many Bell Labs Xs, all emulating the essential magic of corporate research labs such as the iconic Bell Labs of the 20th century while competing with each other and evolving in an "X-like" manner. This vision represents a radical rethinking of the Endless Frontier's sole focus on academia-harnessing American industrial prowess to create public, not just private, goods, and in doing so revitalizing American leadership in societally relevant science and technology.

H/t Tyler Cowen.

Demand, Supply, and Market Design with AI Agents

Peyman Shahidi, Gili Rusak, Benjamin S. Manning, Andrey Fradkin & John J. Horton, The Coasean Singularity? Demand, Supply, and Market Design with AI Agents, NBER, Working Paper

AI agents—autonomous systems that perceive, reason, and act on behalf of human principals—are poised to transform digital markets by dramatically reducing transaction costs. This chapter evaluates the economic implications of this transition, adopting a consumer-oriented view of agents as market participants that can search, negotiate, and transact directly. From the demand side, agent adoption reflects derived demand: users trade off decision quality against effort reduction, with outcomes mediated by agent capability and task context. On the supply side, firms will design, integrate, and monetize agents, with outcomes hinging on whether agents operate within or across platforms. At the market level, agents create efficiency gains from lower search, communication, and contracting costs, but also introduce frictions such as congestion and price obfuscation. By lowering the costs of preference elicitation, contract enforcement, and identity verification, agents expand the feasible set of market designs but also raise novel regulatory challenges. While the net welfare effects remain an empirical question, the rapid onset of AI-mediated transactions presents a unique opportunity for economic research to inform real-world policy and market design.

H/t Tyler Cowen.

Monday, October 20, 2025

Text, coding, and knowledge agents

Thursday, October 16, 2025

Growth in the American economy is now tied to AI

Monday, October 13, 2025

Flashback: Fireworks

Chrysanthemums Bloom

The genius logic of the NATO phonetic alphabet (Alfa, Bravo, Charlie...)

YouTube:

The NATO phonetic alphabet is not a phonetic alphabet and wasn't invented by NATO. However, it has a fascinating story to tell. It is the result of years of linguistic experimentation in the wake of the violence of World War II. So let's explore its development, from ALFA to ZULU.

In this episode, we'll uncover the surprising story of how this alphabet – used by everyone from pilots to police officers – came to be. And look at the strange words that almost made the cut.

Sunday, October 12, 2025

The telegraph, radio, AI, and magic

Cody Delistraty, A.I. Isn’t Magic. Lots of People Are Acting Like It Is. NYTimes, Sept. 25, 2025.

There’s a word that Sam Altman likes to use when talking about artificial intelligence: magic. Last year, he called a version of ChatGPT “magic intelligence in the sky.” In February, he referred to “magic unified intelligence.” He later posted that a recent update has “a magic to it i haven’t felt before.”

At times, A.I. can indeed feel magical. But treating it as anything other than a mere machine can have serious consequences. How many pose their deepest questions to chatbots, as if to an omniscient oracle? They ask Claude or ChatGPT: What should I do about this relationship? This job? This problem? Technology’s supposed promise of salvation — whether it’s Mars colonization, eternal life or achieving the A.I. “singularity” — has become a kind of secular religion, a mix of utopian beliefs that borders on the mystical.

Part of A.I.’s mystique comes from the fact that its inner workings aren’t entirely understood, even by its creators.

And so forth and so on. The article is about AI and magical thinking about it. But halfway through it has a telling section about magical beliefs occasioned by the invention and deployment of the telegraph and then of radio:

There’s a word that Sam Altman likes to use when talking about artificial intelligence: magic. Last year, he called a version of ChatGPT “magic intelligence in the sky.” In February, he referred to “magic unified intelligence.” He later posted that a recent update has “a magic to it i haven’t felt before.”

At times, A.I. can indeed feel magical. But treating it as anything other than a mere machine can have serious consequences. How many pose their deepest questions to chatbots, as if to an omniscient oracle? They ask Claude or ChatGPT: What should I do about this relationship? This job? This problem? Technology’s supposed promise of salvation — whether it’s Mars colonization, eternal life or achieving the A.I. “singularity” — has become a kind of secular religion, a mix of utopian beliefs that borders on the mystical.

Part of A.I.’s mystique comes from the fact that its inner workings aren’t entirely understood, even by its creators.

A bit later Delistraty observes: "People who describe A.I. engines as 'magical. seem to be saying A.I. has become so sophisticated that it is indistinguishable from what was once considered magic." And yet he missed the third Arthur C. Clark's well-known “three laws”: "Any sufficiently advanced technology is indistinguishable from magic."

There’s more at the link.

Saturday, October 4, 2025

Generals See Through the Act [at Quantico]

YouTube:

On a special edition of Shield of the Republic, Eric and Eliot break down Secretary of Defense Hegseth and President Donald Trump's speeches to the General Officer Corps at Quantico this week. They discuss the administration's ongoing damage to civil-military relations and the implications for the future of our armed forces.

Shield of the Republic is a Bulwark podcast co-sponsored by the Miller Center of Public Affairs at the University of Virginia.

Friday, October 3, 2025

Hiromi, interviewed by Rick Beato

YouTube:

In this interview, I sit down with Japanese piano virtuoso Hiromi to talk about her playing, her influences, and her approach to improvisation. We cover her career, her unique style, and what drives her as a musician.

Hiromi is AWESOME!