@doix, thank you for the fascinating deep dive into semiconductor design. To make sure I’ve grasped your point correctly, let me try to summarize it:

- Base Layer (Silicon) = "Steel": Re-manufacturing it is extremely costly, so it must be perfect from the start. - Top Layer (Metal) = "Scaffolding": The wiring layers. These are much cheaper to produce, allowing for "patches" or corrections later on. - The Wisdom of "Unused Cells": By embedding spare cells in the base layer upfront, you can fix bugs later just by changing the metal layers.

Did I get that right?

If so, this logic deeply resonates with what I’ve seen in Japanese "Shinise" (long-standing businesses) as a banker. Specifically, two practices that might look "inefficient" in a modern business model are, in my view, the "Unused Cells" of our Base Layer:

1. Not firing employees easily: While some models treat labor like a "Metal layer" to be cut and replaced for quick optimization, Shinise treat people as part of the "Silicon layer." We keep them even in hard times so that when a big crisis hits, we can "re-wire" their roles to survive together.

2. Keeping high cash savings: Many modern companies prefer to spend all their cash to maximize growth speed. However, Shinise keep a lot of cash. This is like the spare cells in your silicon—it allows us to finance our own "re-wiring" when the market crashes, without the foundation collapsing.

Your insight has given me a powerful new framework for why some organizations survive for 500 years while others vanish in three. Thank you!