"What's your gender?"
"Canadian."
"No, who do you like?"
"Donuts."
"No no, what's in your pants?"
"Polite manners."
Your talk of big feelings resonates with me--historically I've been the same way. In my case, I eventually realized that I was putting so much of myself into relationships (or even potential relationships) because I didn't have many other strong relationships in my life (similar situation--far from family, I moved around a lot). I found that I was putting a ton of weight on relationships because I was subconsciously expecting them to fill a ton of emotional needs. That ended up putting unreasonable pressure on my partners, and I felt unable to take things at the pace I wanted.
Not sure if you're in the same boat, but if you don't feel like you have a solid group of (nonromantic) friends, I'd suggest considering that. As others have said--big feelings are normal enough, but when you have a solid support system in your life, it's a lot easier to ride those waves.
"Hey baby... wanna watch Netflix and dismantle the patriarchy?"
Crack Stuntman had this idea years ago
I've written code before in some hardware-specific languages before (I think it was for programming a stepper motor or something?) that used = for both assignment and comparison. If I recall correctly, the language was vaguely C-like, but assignment was not permitted in the context of a comparison. So something like if( a = (b+c) ) would not assign a value to a, it would just do the comparison.
Imagine saying these operators out loud.
> is "is greater than"
So it makes sense to use >= as "is greater than or equal to"
You'd think = would be "is equal to", but it's already used for "set equal to" (i.e., assignment).
So what symbol do we use for "is equal to"? The symbol used in many programming languages is ==, so Python chose to follow that convention.
It's worth noting that there are other languages that use = as "is equal to", and use something else for assignment (like := for example). It just comes down to the history of the language and what conventions the original authors decided to use.
Only one of those will meet the tolerances.
The short version is: we use some weird abstractions (i.e., ways of representing complex things) to do math and make sense of things.
The longer version:
Electromagnetic signals are how we transmit data wirelessly. Everything from radio, to wifi, to xrays, to visible light are all made up of electromagnetic signals.
Electromagnetic waves are made up of two components: the electrical part, and the magnetic part. We model them mathematically by multiplying one part (the magnetic part, I think) by the constant i, which is defined as sqrt(-1). These are called "complex numbers", which means there is a "real" part and a "complex" (or "imaginary") part. They are often modeled as the diagram OP posted, in that they operate at "right angles" to each other, and this makes a lot of the math make sense. In reality, the way the waves propegate through the air doesn't look like that exactly, but it's how we do the math.
It's a bit like reading a description of a place, rather than seeing a photograph. Both can give you a mental image that approximates the real thing, but the description is more "abstract" in that the words themselves (i.e., squiggles on a page) don't resemble the real thing.
This is pretty much the basis behind all math around electromagnetics (and probably other areas).
I got everything except the Joja one.
I'm calling it 100%.
As others have mentioned, there are no good BifL options. Based on what I gather from your post, your best option is probably getting 2nd hand devices and following behind by a few years. You can probably keep a 3-year-old device for 7 or 8 years (which is ages in the smartphone world), then "upgrade" to another 3-year-old device at that time.
For this, I'd recommend something popular like a Pixel. They have a number of options for alternative OSes (Graphene and LineageOS are both good options) and they've done well for me as long-term use phones.
I've bought my last couple phones on Swappa, and I've had no issues with any of them. Sold one on there too, and they're pretty vigilant (they manually review posts before they can go public).