Blog – tutorials, notes, videos, and commentary. [migration of content in progress]

For my personal blog, mostly DIY, construction, and food, go to Baubilt.com.

  • Finding Content on This Site

    Most content here is a WordPress “post.” The exceptions are books and published articles, which are listed on dedicated pages you access directly via the main navigation menu. You can probably find the content you are looking for by searching using keywords. I’ve tagged most posts so that the search should work pretty well.

  • Minimum Spatial Housing Requirements for Human Flourishing

    Minimum Spatial Housing Requirements for Human Flourishing

    This study establishes evidence-based minimum internal floor areas essential for long-term residential use across various household types. Findings reveal that units below 30 square metres for single occupants and 45 square metres for couples correlate with decreased satisfaction and higher turnover rates. Technical minimums of 30, 45, and 60 square metres are proposed to ensure…

  • Re-Consider the Lobster: Animal Lives in Protein Supply Chains

    Re-Consider the Lobster: Animal Lives in Protein Supply Chains

    Karl T. Ulrich University of PennsylvaniaThe Wharton School – Operations, Information, and Decisions Department500 Huntsman Hall, 3730 Walnut Street, Philadelphia, PA 19104 USulrich@upenn.edu | ktulrich.com Original Version: February 2, 2025This Version: July 31, 2025 Full text below. Abstract Animal protein production represents a complex system of lives transformed into nutrition, with profound ethical and environmental…

  • Introduction to Product Management

    Introduction to Product Management

    What is a Product? I recently read the book “Why we sleep” by Matthew Walker. It really scared me, and I decided that better sleep should be a priority in my life. Being an analytical guy, I first wondered how good my sleep is currently, and how I could monitor the quality and quantity of…