Good morning & happy Tuesday! Today, we're diving into Block's Buzz, the open-source AI agent workspace Dorsey just released after cutting 4,000 employees (how it actually works, why calling it a Slack killer misses the ultimate goal, what Block's internal numbers say about running a company on AI agents + the Full AI OS to Run a Startup with Claude & How to Build and Agentic OS with Claude Fable 5 inside), and Moonshot AI's Kimi K3, the first open-weight model in the 3-trillion-parameter class, already running on consumer GPUs (why the architecture matters more than the parameter count, what the license tells you about Moonshot's strategy, & how this changes the rent-vs-own economics for anyone building on frontier AI + the Ultimate Guide to Kimi K3, and DeepSeek's AI Playbook that erased $589B of Nvidia's value inside). So let's jump straight into the finovative stuff '' The news '' In April, Jack Dorsey and Sequoia's Roelof Botha published a 3,000-word essay arguing that hierarchy is just an information-routing protocol, and AI can replace it. The theory was sound. The messenger was not....

Some people view the world, at least major parts of it, as a zero sum game where one person gains only to the extent that another loses. Starting with this point of view, it is natural enough to see all disagreements as questions of which side you are on. Do you favor workers or employers, landlords or tenants' The alternative is to see disagreements as not only about how to divide up the pie but about how to change its size. It then becomes not only a question of us vs them but also of our arguments vs their arguments, with some hope that one set of arguments will eventually persuade almost everyone. These different viewpoints are reflected, in political rhetoric and political thinking, in the difference between relative and absolute measures. If we define the poor as the bottom ten percent of the income distribution we can be confident that they will always be with us. If we define the poor by the real income of the tenth percentile as of the US in1900 the problem of poverty has been solved for developed countries, since the number of people in them with incomes that low is now close to zero....

Ten years ago, the virus that causes polio seemed to be on its way to extinction. In August 2016, Nigeria experienced its last two cases of the wild virus, leaving it circulating only in Afghanistan and Pakistan. Amid global excitement, Hamid Jafari, who at the time directed polio operations and research at the World Health Organization (WHO) predicted of Pakistan: 'We may be looking at months ' months, not years ' before we eradicate polio in this country'. Since then, however, eradication targets have come and gone: 2019, 2023, 2025. Last month was the latest missed target to stop transmission. In the past decade, more than US$3 billion has been spent fighting the virus in Afghanistan and Pakistan, where billions of doses of oral vaccine have been administered. Campaign leaders hoped that polio would finally disappear during last winter's low-transmission season. But that didn't happen; 14 new cases have been reported so far this year. Although the WHO said last January that eradication was 'within reach', most researchers interviewed by Nature for this article are very concerned about the chances of success. 'In theory, eradication is possible, but in practice, it is not,' says Kimberly Thompson, who studies health economics at Kid Risk, a non-profit consultancy in Orlando, Florida, that models polio transmission and eradication....

In 2026, conversations about Black founders and venture capital have focused on access to funding. But as AI reshapes startup economics, the bigger challenge is no longer simply getting a first check, it's raising enough capital at the seed stage to successfully reach Series A. AI has fundamentally lowered the cost of building software companies. Founders can launch products faster, automate operations and accomplish with five employees what once required teams of 30. Yet while AI has reduced the cost of building a startup, it has not reduced the cost of scaling one. Companies still need resources to acquire customers, hire experienced talent, invest in go-to-market strategies, and generate the revenue and growth metrics institutional investors expect before leading a Series A round. For Black founders, who continue to receive a disproportionately small share of venture capital, the inability to secure fully funded seed rounds has become one of the greatest barriers to building venture-scale companies....