Earlier quoted context omitted.
> how does a "tool" which constantly change its behaviour deserve being called a tool at all? Let's go with blast furnaces. They're definitely tools. They change over time - a team might constantly run one for twenty years but still need to monitor and adjust how they use it as the furnace itself changes behavior due to wear and tear (I think they call this "drift".) The same is true of plenty of other tools - potter…
Whether its blast furnaces or carbon fiber, the wear and tear (macroscopic changes) as well as material fatigue (molecular changes) is something that will be specified by the manufacturer, within some margin of error and you pretty much know what to expect - unless you are a smartass billionaire building an improvised sub off of carbon fiber whose expiry date was long due. However, the carbon fiber or your blast furn…
I wrote about another solid case study this morning: https://simonwillison.net/2025/Dec/14/justhtml/
I genuinely don't understand how you can look at all of this evidence and still conclude that they aren't useful for people who learn how to use them.