Beach safety: How to spot a rip, and what to do if you’re caught in one
“The safest beach in New Zealand is a beach that’s patrolled by surf lifeguards.” Chaz Gibbons Campbell says one of the best ways to keep yourself safe in the water is to know how to float. Photo / Brydie Thompson He said one of the best ways to keep yourself safe in the water was […]
Why Semantic Layers Matter — and How to Build One with DuckDB
Many ask themselves, “Why would I use a semantic layer? What is it anyway?” In this hands-on guide, we’ll build the simplest possible semantic layer using just a YAML file and a Python script—not as the goal itself, but as a way to understand the value of semantic layers. We’ll then query 20 million NYC […]
How to Decarcerate Jails and Prisons
The United States is a world leader in mass incarceration. Our prisons and jails are notoriously violent and inhumane. Millions of people are housed in often overcrowded, crumbling facilities, where health care and food standards are abysmal. We pour billions of dollars into this dysfunctional system—neglecting critical housing, health care, and education needs—and it doesn’t […]