retail therapy

The pitfalls of churn rate.

In 2018, as Spotify prepared to go public, this author noted “Spotify is making a common and dangerous mistake in their LTV calculation.” He uses this to make the point that, “Investors and entrepreneurs should shift their attention towards a […]

to your health

How to build an artificial heart.

This New Yorker story covers the development of artificial hearts and the continued efforts to improve their design and development. It includes recent interviews of the engineering teams who are on the cutting edge of new designs as well as […]

better doing

The staircase of the self.

Lawrence Yeo takes the evolution of self and grafts it onto a metaphorical staircase. It’s an interesting exploration that reminded me of the Jung quote: “The first half of life is devoted to forming a healthy ego, the second half […]

oh, Austin

Building around protected trees in Austin.

There’s construction on my street and that included removal of a big tree. I learned that trees larger than 19″ diameter are all protected, so to remove one you must pay a fee, plant new trees elsewhere on the property, […]