Tag: Arizona

teaching the kids

A negative data point for Alpha School performance.

August 16, 2026

A negative data point for Alpha School performance. They created a charter school in Arizona called Unbound Academy using their 2-hour-per-day learning software. “Unbound Academy’s 2025-26 assessment scores underperformed not just its predicted targets above, but also the Arizona state […]

fun facts

Interstate 19: America’s only metric highway.

March 29, 2026

Interstate 19: America’s only metric highway. “There’s not many places in the U.S. where you get a little math problem while you’re driving.” Interstate 19 in Arizona is a 102-kilometer stretch where signs are in meters and kilometers, and locals […]

tech, startups, internet

The bull case for Opendoor

October 12, 2020

I’ve been casually following Opendoor since they were just a tiny startup buying and selling houses in Arizona. Now they’re about to go public via a SPAC at a $4.8 billion valuation. Here’s the bull case for “the Amazon of […]