There's a third case between "today's task" and "accretive work" that I lived through on The Sims, and it's the one that scares managers the most: a system that IS accretive work, but looks exactly like a pile of disposable hacks for most of its life.

Chris Trottier, one of the designers of The Sims and The Sims Online, called the method "Design by Accretion" and "Tuned Emergence" in an interview with the Armchair Empire that I republished on my old blog.

Her description: The Sims and SimCity were incrementally assembled out of "a mass of separate components", like a planet forming out of a cloud of dust -- they had to reach critical mass before tuning could even begin.

Before it was tuned, The Sims was known inside the company, not very affectionately, as "the toilet game", because there wasn't much else to do. SimCity 2000 wasn't fun until six weeks before it shipped.

The Sims didn't come together until a couple of months before ship. In her words: "Being involved in that tuning process, and seeing the game take shape from what had previously been a mass of separate components, was one of the most powerful experiences of my career."

https://web.archive.org/web/20110408034710/https://www.donho...

Original interview:

https://web.archive.org/web/20111211182436/http://www.armcha...

The hard part wasn't the code -- it was explaining to EA not to panic. By every rule in EA's playbook the toilet game would never work, and it took Will Wright's tremendous stamina to keep it from being cancelled. Here's a screen recording of the actual June 1998 "Sims Steering Committee" build we showed EA to buy another year and a half -- bathtubs placeable on hills, placeholder pie menus, Archie Bunker permanently holding a burning cigar:

https://www.youtube.com/watch?v=zC52jE60KjY

The distinction Kontorovich/Elliott-McCrea call "canonization" is what Chris called tuned emergence: the late, undervalued pass that turns an accreted mass into a coherent system.

What made The Sims accretive rather than disposable wasn't visible in the code mid-accretion -- it was that the tuning pass was a committed part of the method, held by people with the authority and stamina to protect it.

Which suggests the real question to ask about any AI-generated pile of working fragments isn't "is this slop?" but "who is signed up to tune it, and will management hold its nerve until they do?"

A toilet game with a Will Wright becomes the best-selling PC game of all time. A toilet game without one stays a toilet.