Chang’s Jottings

Chang’s Jottings

Even the Best Get Burned: The Hard Truth About Investing

In 1996, David Einhorn was only 27. With just $900,000—half of it from his parents—he set up Greenlight Capital. On Wall Street that sum was little more than pocket change, but in Einhorn’s hands it became a kind of philosopher’s stone.

Chang’s Jottings

Stablecoins: Still Early, But Already Everywhere

What Is a Stablecoin?

A stablecoin is a digital token built on blockchain, backed by real-world assets, most commonly, the U.S. dollar. Think of it as a “blockchain version” of the dollar. Like Bitcoin, stablecoins are decentralized and borderless. Unlike Bitcoin, their value doesn’t swing wildly from day to day.

Chang’s Jottings

Solid on the Surface, Soft Underneath: Another Week in Jobs

Last week’s employment report felt familiar. Not dramatic. Not weak enough to shift policy. Just more of the same pattern we’ve seen lately: solid headlines, soft details.

Chang’s Jottings

Where AI Stands

Earnings season has a rhythm to it. You sit down with the numbers, look at what the companies said—and what they didn’t—and try to understand the direction things are moving. This time, the theme is familiar: AI. Not just as a product or initiative, but as a core part of how large companies are thinking about infrastructure, competition, and long-term strategy.

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