Federal election times are set by 2 U.S. Code § 7 as 1 day after the 1st Monday in November (of even numbered years). The law is from 1875 and from what I can tell is indeed nominally motivated by the voters’ need to first observe rest day on Sunday and then travel to their polling place. Keeping it and not having a federal holiday coinciding with it is largely aimed at keeping voter turnout low.

Shout out to Retro Video Game Mechanics Explained for his explanation of the entire construction of the cries.

That phrasing refers to a very broad set of movements and individuals. The usual core beliefs are:

• Legislation in their jurisdiction and the government’s authority to enforce it is in some way defective.
• People in their jurisdiction can opt out of laws and government, and live only under “natural law”.
• People have to perform a set of legal procedures (spells, effectively) in order to achieve that.

Exactly why and how law/government authority is defective, how they understand natural law, what the spells are that they have to cast - all of these are extremely variable both between jurisdictions and between individuals.
Primarily it’s a set of grifters charging money for courses and materials to learn about these beliefs from whoever they can convince. Sometimes, as in Germany, it’s a group of neo-Nazis plotting to reinstate the Kaiser.

You might enjoy münecat’s longer form explanation.

I’d say the key insight with quantum computing is that its algorithms are about choreographing interference patterns among qubits such that wrong answers cancel each other out but right answers reinforce one another. It’s not just a matter of trying possibilities in parallel or “running different probabilities simultaneously” - the qubits’ states are complex combinations of 0 and 1 states, and they interact with and change one another. Simulating those interactions on a classical computer requires exponentially growing amounts of memory space and time as the quantum computation gets bigger. Trying to divide-and-conquer this simulation over multiple classical computers runs into the need for different parts of the circuit to know about each others’ state, limiting how much work can be sectioned off to be done by each computer in the group.