I think there is a lot of beautiful wisdom in the bible that sticks with me, but usually it only comes out when I (way more often that I'd like) hear someone who claims to be Christian acting in a way that is completely antithetical to what is in the bible.
No. (Or maybe yes. See Edit)
Ultimately, you are the one that decided to install things outside of your distro's package manager. If you don't like what happens as a result… then don't do that.
You are completely able to use the built-in package manager to achieve what we had "a few years ago". If you want something that isn't available in the package manager you can do what we did "a few years ago" and install it separately yourself (from source, flatpaks, snaps, appimage). Or you could become a package maintainer for that package and get it added as a package for your distro. It's completely up to you and in no way different frmo what it was a few years ago.
Edit: after finding out from @mfat@lemdro.id that Fedora does in fact officially support Flatpak, I do indeed think that they could do better in how they support that.
It was theorized that light could be a wave way before the double slit experiment. Like, a century before. So no, it wasn't "assumed light is 100%" quantized before that experiment.
Anything that is a wave can be cancelled, so this idea was baked right into the wave theory of light, they just didn't have the ability to control light precisely enough to prove it until the double slit experiment. You don't need quantum mechanics to explain wave theory, it just happened that the double slit experiment, while proving that light behaved like a wave, also showed other characteristics that it was also behaving in a quantized fashion. The fact that light is quantized into photons has nothing to do with the fact that they cancel so you really don't need quantum mechanics to explain it. The reason light can be cancelled is exactly the same as every other thing in physics that behaves like a wave.
The word quantum comes from the word quantization not "quantify". Those two words mean different things
Light is a wave. It also happens to be a particle. So the "existence of waves" is not a different subject. It's exactly this subject
Edit: Love the snarky edit to a post full of being confidently wrong. I'm going to go engage with others. Good day, sir/ma'am!
Neither EM wave interference nor noise cancelling headphones are quantum mechanics. It's not nitpicking.
This is fundamentally not true.
Light is made of electromagnetic waves. If you can control the timing of those waves precisely enough, you can add another light with the opposite phase (an inverted wave) that will cancel out the other light.
This is what happens in the famous "double slit experiment". It's also the same principal as noise cancelling headphones albeit with sound pressure waves instead of EM waves.
Scientists have actually cooled atoms very close to absolute zero by shining a laser at them
I’m curious how that could possibly be the case…
You said in another comment that you were both making $45k. According to this table from the IRS you would each be paying $3,743 as single filers and $7,483 filling jointly. That adds up to a $3 savings when you get married. Not too mention a $6k difference is 80% of the total taxes owed so it would be wild to see that big of a variation caused by filling jointly.
Perhaps there was some tax break or credit you got when you were single that you lost when you got married? In that case, couldn’t you just file your taxes separately if there really was a significant difference from filing jointly?