Imagine you have two random number generators, each
producing a sequence of digits. The question for your
computer is this: Are the two sequences completely
independent from each other, or are they related in a
hidden way?
That, right there, should tell absolutely everyone, by intuition alone, that, despite assurances from industry experts that flaws leading to breaks (plain-text discovery faster than brute force) are universally impractical, even with all the energy of a dyson sphere, that there are classified equations for back doors baked into all modern, commercially used civilian/consumer-grade cryptographic algorithms.
I'm not 100% sure which side you are taking, but I think you are saying all common crypto is backdoored. That seems like a giant logical leap with absolutely no hints as to why you landed at that conclusion based on your quote.
(edited to match parent) Her mother was Helena Jens, and she was already married to another man at the period this article talks about. Descartes was also back in France while she was still in the Netherlands.
Although Descartes did vivisect animals for research purposes, I think it's safe to say that this particular account is an invention.
Well, think about it this way: airplanes don't have differential gear boxes that transmit power to the drive train in contact to the ground. In other words, power on the ground is not delivered by the wheels.
This means the engines that deliver the thrust in the air, are also doing the same work on the ground. The traction is delivered to the air, and the rolling is all relative to to the thrust.
The manner of control for the power of the thrust isn't based on throttle alone. There are a handful of factors that tie together, to generate force.
Just like stepping on the gas, when a car is in neutral, you can spin up the turbines or propellers, without directing the air in such a way that moves the aircraft. The pitch of the blades matters. Also, with multiple engines, thrust must be synchronized, or the effect is a turn, and one engine could push the plane in circles, if controlled improperly.
So, it's not like leaving the emergency brake engaged in a car. There are other variables at work.
I think it's also a factor, that often enough, with complex machines created to solve for a complex problem domain, leaving configurable items as independent as possible prevents more footgun scenarios than it creates. When quick thinking is needed in an emergency, to deal with real world forces in play, systems are best designed so that in a proverbial sense, you can quickly throw yourself at a problem, when stopping and thinking about a strategy might take too long.
This is not to say that stopping and thinking carefully about strategy should be skipped, but that when trouble finds you, despite best efforts, and seconds count, having the ability to skip checklists and improvise in the heat of the moment does represent a desireable pathway for saving throws.
