Arnold Kling: “The nation’s economic statistics include what are called accounting identities. They have to add up. The identity that I will work with here is sometimes called the flow-of-funds identity: Investment = Domestic Saving + Foreign Saving – Government Deficit. This is always true, by the definition of the aggregates involved. Any macroeconomic model or analysis that breaks this identity is nonsense. From now on in this essay, I am are going to leave out Foreign Saving, which is the saving provided to our economy by foreign households and governments as we run a trade deficit. The tricky part of macroeconomics is deciding within this identity what drives what. If there were no government deficit, we would have: Investment = Domestic Saving. In the Classical world, the driver at work is the interest rate. The interest rate has to be just high enough to call forth saving to finance investment. When we bring the government deficit back into the Classical world, we get “crowding out” of Investment. The government borrowing drives up the interest rate, and there is less Investment.”
WSJ: ““Conflict” brings together one of America’s top military thinkers and Britain’s pre-eminent military historian to examine the evolution of warfare since 1945. Retired Gen. David Petraeus, who co-authored the U.S. Army’s field manual on counterinsurgency warfare and oversaw the troop surge in Iraq in 2007, brings a professional eye to politico-military strategy. Andrew Roberts, who has been writing on military leadership since the early 1990s, offers an “arc of history” approach to the subject of mass destruction. The pair’s ambitious goals: to provide some context to the tapestry of modern conflict and a glimpse of wars to come…Many of the elements that “Conflict” dissects—the use of low-cost drones, the targeting of infrastructure, the power of social media and the patronage of outside powers, to name a few—flash across our screens in real time, reminding us that “war is thus still very much worth studying.” Timely, engaging and instructive, “Conflict” is the best one-volume study of conventional warfare in the nuclear age. It sets a new benchmark in understanding modern war.”
NYTimes: “The world’s leading artificial intelligence researchers are transforming chatbots into a new kind of autonomous system called an A.I. agent. These agents can do more than chat. They can use software apps, websites and other online tools, including spreadsheets, online calendars, travel sites and more. In time, many researchers say, the A.I. agents could become far more sophisticated, and could replace office workers, automating almost any white-collar job. This is a huge commercial opportunity, potentially trillions of dollars,” said Jeff Clune, a computer science professor at the University of British Columbia who previously worked on this kind of technology as a researcher at OpenAI, the San Francisco start-up that built ChatGPT. “This has a huge upside — and huge consequences — for society.” Nvidia’s agent plays a game. Similar agents can schedule meetings, edit files, analyze data and build multicolored bar charts. The idea is that these automated systems will eventually act as personal assistants able to handle a wide range of tasks across the internet.”
Marc Andreessen’s Techno-Optimist Manifesto. “Techno-Optimists believe that societies, like sharks, grow or die. We believe growth is progress – leading to vitality, expansion of life, increasing knowledge, higher well being. We agree with Paul Collier when he says, “Economic growth is not a cure-all, but lack of growth is a kill-all.” We believe everything good is downstream of growth. We believe not growing is stagnation, which leads to zero-sum thinking, internal fighting, degradation, collapse, and ultimately death. There are only three sources of growth: population growth, natural resource utilization, and technology…Give us a real world problem, and we can invent technology that will solve it.”
Carlo Rovelli: “I study black holes. We see them in the sky today, thanks to spectacular telescopes, but we only see the exterior. We see matter that spirals furiously, before plunging into them. What’s deep inside? What would we see if we entered a black hole and, resisting the crushing forces, fell all the way down? Current science has no answer to this question. Einstein’s theory predicts the end of time down there, but the hole’s inner regions are dominated by quantum aspects of space and time, and these are not taken into account by Einstein’s theory. How can we learn about a place we can neither travel to nor see? To travel to places that we cannot reach physically, we need more than technology, logic or mathematics. We need imagination.”