COVID happened though, and shortages of commodities were extremely temporary, with no dire consequences overall.
What was actually unavailable with dire consequences, like masks/etc... was not unavailable due to lean manufacturing, but simply because it was a new demand that did not exist at this scale before.
What was actually unavailable with dire consequences, like masks/etc... was not unavailable due to lean manufacturing, but simply because it was a new demand that did not exist at this scale before.