under the microscope

Functional human sperm in a lab.

Functional human sperm in a lab. “Growing functional human sperm entirely outside the body.” Little by little we’re living in an era where humans are taking control over biology. In this example, they were able to coax stem cells into […]

under the microscope

Rods that run cone software.

Rods that run cone software. Despite my comment above about humanity taking control over biology, it’s also true that we still know very little about biology. “For more than 150 years, vertebrate vision has been understood as a two-part system: […]

teaching the kids

The cost of safetyism.

The cost of safetyism. “What we lost when we stopped letting kids leave the front yard. … The world didn’t get more dangerous. We got more afraid.” Steve Magness argues that the big shift is a perception-reality gap, and the […]

on the blockchain

Unlimited counterfeit coins.

Unlimited counterfeit coins. Privacy coin Zcash’s price crashed 57% in 24 hours thanks to a newly disclosed bug. “The vulnerability could have been exploited to undetectably create an unlimited amount of counterfeit ZEC within Orchard,” Shielded Labs said. The scary […]

fun facts

You have never seen a strawberry like this before.

You have never seen a strawberry like this before. “Shot from 90 perspectives, 88 focus stacked images each.” A strawberry turned into a navigable 3D scene, plus a peek at the capture setup and training pipeline behind it. ~ learn […]

fun facts

GPS converts time into distance.

GPS converts time into distance. “GPS is fundamentally a translation tool: it converts time into distance.” The whole trick is stopwatch-level precision, then geometry, then relativity corrections so your phone does not drift “by roughly 10 km every 24 hours.” […]

tech, startups, internet

The Great Differentiation.

The Great Differentiation. “Copying is free and frictionless. And because it is cheap, it is low status.” Packy’s take on why everything looks the same online, and why the next wave of differentiation moves into costly signals, often offline. ~ […]

tech, startups, internet

To be illegible is to disappear.

To be illegible is to disappear. Joumana Elomar argues that in a world of decks, tweets, and LLM summaries, your company “will live or die in rooms you aren’t present in” so the surface has to carry the truth. ~ […]