I believe that's what dark energy is- the shortfall from not violating conservation of energy, given what we know about physics vs what we observe in the universe.
I'm not sure if this answers the question, but it might help.
Everything in space is moving, but it's not expanding outward from a central point, like an explosion. Instead, the space between the things is getting bigger.
The balloon analogy gets thrown around a lot, but I find it misleading- It's not about the balloon getting bigger, expanding outward from the center of the sphere. It's more about the surface of that balloon stretching.
The rubber sheet analogy helps. Scatter a bunch of things on a infinite rubber sheet. Now stretch that in all directions - the things get further apart, but are not moving away from a central point.
If it's non-critical, with a bit of work it can be made 'waterproof', at least at 1atm. But realistically, unless you need a specific shape, it's going to be easier and more reliable to just use an off-the-shelf case.
I use an old Stream Deck- not the Steam deck- from Elgato. It's essentially a small touchscreen with a transparent button pad laid over the top, making for a fully programmable macropad with fully customisable screen-per-key.
Not only can I have esoteric shortcuts, but I can also dynamically label them, depending on layer. I have a 'home' layer with icons representing each other layer. So, for example I can load up a video game, and press the corresponding icon on my macropad. It will then change the icons to match whatever command it does- various whistle commands in Ark, for example. I can then change programs into my CAD, and have the icons now be various shortcuts for modelling tools.
Oh jeez, I hadn't even thought about capitalisation in the file extension. That would be especially confusing if extensions are hidden- the user would be presented with two files that look exactly the same.
But do I type 'ImportantFile', or 'importantfile'?
As I understand it, if I searched for either of these strings in a case sensitive file system, I would not find a file called 'IMPORTANTFILE'.
At best, a case sensitive file system makes naming conventions more complex. At worst , it obfuscates files. I just can't imagine a scenario where it would be helpful. Do you really see a need to have a file called 'aaaAaa' and a totally separate one called 'aaAaaa'?
I'm of the opinion that everyone should have two basic dishes absolutely down. A summer one, and a winter one. Simple is best- But perfect it. My winter one is a tuna mornay- Four (cheap) main ingredients and a couple spices. Took me quite a few meals to really get it to the next level, which was great, because it's still pretty good eating. Now, people ask for it, it makes winter gatherings nice and cosy, it's something I can whip up to impress a date, if a friend is going through some shit I can deliver a batch...
Oh my fuck, we absolutely would shave our tails, and there is just something so horrid about that thought that how I won't be able to fucking sleep, thanks, I hate it.
Ah, the planetary core, the powerhouse of the planet.