Of course a lack of steel causes the car factory to stop, but it would still be quite the discovery that car factories are regularly stopping because of a lack of steel.
In fact I wouldn't believe you if you told me that was in fact the case.
"... but it would still be quite the discovery that car factories are regularly stopping because of a lack of steel ..."
What if you dug deeper and found that the steel-lacking factories were the ones which made the worst cars ?
I think that's the default analogy you should be making when you see cells "stopping".
This idea that cells that stop processing, or that undergo apoptosis (cell death) or are incapacitated by free-radical damage / oxidation should be "saved" is probably a mistaken one.
It's probably a much better outcome that they die.
When you go off into analogies it can become difficult to determine whether the paralleled are insightful or worthless.
For what itβs worth though, I think there are plenty of examples of car factories closing down because they are unable to secure a supply of raw materials. The machinery and the workers are all still there, but for whatever reason the owner stops sending steel to the plant and it shuts down.
In fact I wouldn't believe you if you told me that was in fact the case.