Possibility of plane unable to take off at the scheduled time but holding on the runway to make the next available slot.
The problem with cutting some things out is that, even though it might not be utilized 95% of the time, that 5% when you need it, you really need it.
Similar to the backup generator for your data center and justifying it along with the maintenance and tests that go along with it to your boss.
My worry with the direction that engineering is moving, lean, is that we are reducing our safeties below a good level. I see the philosophy moving to other areas, such as finance, creating a race to the bottoms where everyone is leveraged as much as possible. Then when a crisis hits, everyone is unable to survive and we have to turn to government bailouts.
Lean philosophy has recently been targeting healthcare, as a way to reduce cost and reduce adverse outcome while improving quality. While I do think this is important, looking at what is going on in the middle of a pandemic. Is a contributing factor of hospitals running out of masks and ventilators due to lean inventory management practices?
I read a lot a about food wast and how we over produce, it seems logical that there will be a push for lean practices there as well. I could see it being made as a strategy to reduce the amount of CO2 as well as farm land. But conversely, with climate change and the risk of crop failure, is that a good idea?
As for the rest - I am completely, and 100% over lean philosophy/training/gurus. That has been a major focus in higher education in recent years.
And it has just led to top-down, money based decisions instead of student focused discussions and choices.
I am with you, I think we are just removing safety from areas that may not be appropriate to remove them from.
100% with you here. Especially the ones preaching 'optimizing' your personal life by getting rid of any capacity beyond what you use in your daily life. Once you peel back the glossy cover they almost always, in real terms, translate to "save money by mooching off your friends' equipment and work space".
Accommodations for other people's physical needs is a pretty serious Chesterton's Fence situation.
In other words asking grown-up people to just “keep it in” doesn’t work, just ask Tottenham player Eric Dier for the latest example (am on mobile, too lazy to link, but a quick web search should give you the whole story).
Why do you need a toilet for that? I understand there are disabilities that may call for it. But in the 10-15 years I made that flight regularly, I never saw someone use the toilet an extreme amount. It was more for convenience. I have to assume that those short-haul flights could save a ton of fuel by eliminating toilets.
But I also have a young(ish) bladder and young(ish) digestive system. So maybe I'm just too self-centered.