retail therapy

The Amazon empire strikes back.

Stratechery: “Amazon’s owning the end to end supply chain makes it harder for merchants to ditch Amazon. Because the alternative logistics network form China are more expensive and more prone to failures. Investment years ago creates value and loyalty today.” | learn […]

to your health

Blood draws from the comfort of home.

“Patients simply stick the button device, which is roughly the size of a ping pong ball, on their arm with a light adhesive and press the device’s large red button, which causes a vacuum to form. A lancet in the […]

better doing

What is an anti-mentor?

This is a short clip from The Knowledge Project where William Irvine explains the benefits of having an anti-mentor, “someone who, when they look down on you or disagree with you, you know you’re doing something right.” | learn more

tech, startups, internet

How TikTok reads your mind.

The New York Times explains, based on an internal document. “The document, headed “TikTok Algo 101,” was produced by TikTok’s engineering team in Beijing. A company spokeswoman, Hilary McQuaide, confirmed its authenticity, and said it was written to explain to […]

fun facts

Why retaining walls collapse.

“When you see a retaining wall in the wild, the job of holding back soil looks effortless. But that’s usually only true because much of the wall’s structure is hidden from view. A retaining wall is essentially a dam, except […]