Not a lawyer, but I think this is common knowledge: They are required to not only show it but provide a copy of the warrant on request. Furthermore the warrants are scoped, if the warrant specifies searching for firearms and the search your hard drive it can't be used in court unless you verbally allow it. Don't resist, but don't consent.
If you wanted to multiply two polynomials f and g of degree n, you could do distribution and the do n squared multiplications. Instead, evaluate the two separate polynomials at 2n special points, multiply the results pointwise, and then interpolate. The magical part is there are some specific points which speed up the evaluation and interpolation steps using a divide and conquer type algorithm.
There is a bit in a PG13 movie where the guys says "Do you know that unless you’re willing to use the R rating, you can only say the ‘F’ word once? You know what I say? Fuck that. I’m done." I think the same is true for `from X import *` and code quality.
It is not functioning as a garment, it is a device used to enforce modesty and mark someone as second class citizen. It is more similar to a straight jacket or a yellow star than a hat. What complicates it is some people of faith want to wear it and are persecuted for that.
Making it simply a choice of clothing is reductionism and you know it.
I want to clarify, I am not trivializing the work of category theorist. It is a field of mathematics which provides a useful framework for algebraic geometers and algebraic topologists, and has even been fruitfully applied outside of math.
A personal favorite of CT generalizing an existing idea is in knot theory the khovanov homology detects the unknot, which is an amazing feat for a knot invariant. Bar Natan covers the construction well: https://arxiv.org/abs/math/0201043
However for some reason this particular field of math is a lightning rod for quacks. I don't really know why, but that is the way things are now.
Category theory has very hard definitions and not many theorems. Would not recommend. It has Grand Unified Theory vibes so pseudo intellectuals have a hard on for it.
Don't waste your time trying to understand people who write to make themselves sound smart. You aren't missing out on anything.
Here is a recent article from TOPLAS, imo a top programming language journal. No category theory here...