[signatoremo]

JIT isn’t about reducing safety margin. It was pioneered by Japanese companies, namely Toyota. They are known for risk adverse, safety first.

> This is a solution that teenager put in management position would think of(along with hire more people as solution to inefficient processes), not a paid professional.

What kind of comment is this? Toyota has been using and refining it for decades. It wasn’t invented yesterday by some “teenagers”. Such a state of HN’s comment section.

JIT is definitely not perfect as exposed during the Covid period, but it isn’t without merits and its goal isn’t “reducing safety margin”.

Then we have JIT in computing, such as JVM.

[phil21]

> its goal isn’t “reducing safety margin”

Sure it is. That's exactly how it achieves the higher profitability. Safety margin costs money. Otherwise known as inefficiency.

Slack in the system is a good thing, not a bad thing. Operating at 95% capacity 24x7 is a horrible idea for society in general. It means you can't "burst mode" for a short period of time during a true emergency.

It's basically ignoring long tail risk to chase near-term profits. It's a whole lot of otherwise smart people optimizing for local maxima while ignoring the big picture. Certainly understandable given our economic and social systems, but still catastrophic in the end one day.

[Xelbair]

It literally is reducing safety margin(buffers) of a whole distribution system by definition, and it is also being applied in places where it does not fit - like systems that should be resilient to disruption and/or anti-fragile.

I would expect a paid professional in management discipline to be aware of such nuance but alas proven wrong again.