Big Deal. You realize those minerals are present in just about any water you can imagine, right? They are almost completely harmless or even beneficial. The guy in your video is just scaremongering in order to sell something.
You need to provide evidence for your claim that they leak energy, first of all. You also don't seem to understand how sash windows work. They are meant to be opened from the top and bottom at the same time, which creates a continuous flow of air from the outside. They can also accommodate window A/C units. Your German windows can do neither.
They knew. I mean, it's pretty obvious from the screaming. They just had to have an excuse for the lucrative practice of mutilating babies, which American doctors still do today.
> It feels like if they can manage orchestrating serverless functions they can manage orchestrating containers or VMs...
Ah, but they cannot. We have the misfortune to be stuck with them at my workplace, and it's painfully obvious that they don't test nor use the kubernetes features, as most of them are straight up broken. I have no trust in them whatsoever.