Check out the Microsoft baseline security guidelines for Windows 11. It's about 400 entries. 400 settings that Microsoft themselves recommend changing from the defaults to achieve a baseline security.
Why does windows 11 show stock values in the task bar by default? Why does it show ads, games and yellow press headlines when you click on it? On the enterprise edition! Xbox services are installed and running by default. Why?
How do they do that? Either they 1) transfer your entire data to your system before searching, 2) use shoddy cryptography, or 3) you have to expose your private key to them. I doubt it's 1).
> Click Enable to confirm. Your messages will then be downloaded from Proton Mail’s servers, decrypted, and indexed locally in an encrypted state.
They just download your emails into your browser and make them locally searchable.
I battled the same issue, in the end I have unencrypted data for fulltext search. But none of these are sensitive. I was thinking that maybe with AES, which is just a XOR, you could do search if you have the key as you just need to know how to XOR the search query and which phrases you can include. So instead of "hello" the XOR would yield "arpe5," and you just look for that in the db. But this could only work with exact matches or prefixes, it would not allow elastic search or anything complex like that.
A good moment to point out that the infamous "cyber bunker", a data center catering to criminals, was infiltrated by a female police officer who managed to get hired as a cleaning lady.
Criminal organizations have the problem that they can't exactly run a background check. They need other criminals, and of course there's an obvious problem with that...
I travel a lot to many different places including small villages. I'd like to take advantage of a rewards program, but the places I travel to often don't have one of the large chains. These booking services allow me to get bonus points. I thinks that's a good reason, besides the superior convenience of having a unified interface. I rarely had any issues with them either.
I once mentioned that while checking in at a family owned hotel, and they said they appreciate that the booking service allowed them to compete with larger chains on that front.
> Dr. Qiujiang Lu is an independent researcher and software developer in Silicon Valley whose work has re-created the imaginary unit in real life from first principles, which remained unknown for 500 years since the inception.
Sounds grand. A bit too grand, perhaps. Does anyone know what he's alluding to? ELI am a physicist.
“which remained unknown for 500 years since the inception”
Is wrong
But an easy way to define the complex plane is to postulate you want multiplication of vectors in polar form to multiply distance to origin and add angles. No mystery number squares going negative here, just simple and useful geometry !
There’s a whole book about it, Visual Complex Numbers by Tristan Needham. This author is the real boss of the game
Judging from his videos, I do not think he actually creates something new. He takes a geometric approach to constructing complex numbers, but these approaches exist. Not all approaches to complex numbers are algebraic (ie about extending the real field).
As far as I understand, he essentially defines $i$ through a π/2 rotation. But this is exactly what $i^2=-1$ is. So in a sense, I do not think it is quack, but overblown in terms of novelty. Personally, I always liked such kinds of geometric approach to complex numbers, because it makes a lot of stuff more intuitive, even just for reals (eg you can see multiplication by -1 as rotation by π). If he makes a good dissemination of the complex numbers to kids, it could be worth it, but no idea without any sample from the book.
He takes reals to be "stretch" and imaginaries to be "rotate". As in, real space, not an abstraction like "complex plane".
Then the imaginary unit becomes, not just rotation by pi/2 but a "basis vector" for rotation.
Putting on my physicst/engineer hat. this identifies rotations with the axis of rotation, which points outside the plane. (Disclaimer: this is not exactly how the author thinks about it.)
(In contrast. The basis vector of "stretches", btw which include 180-degree rotations, stay in the plane:)
The math is not novel but the perspective is.
Now this can be generalized to 3D rotations, whence you think of (the unit) quaternions as 3 independent axes of rotations.
(Euler angle and Euler formula become muddled :)
There's also the "rotational derivative" (angular velocity) bit which is THE THING worth mulling over. I think is the really novel bit (again. perspective, not math-- but I have not worked out his [degree] arithmetic )
(He calls it the fundamental equation in the video)
The physicist gets reminded of Legendre transforms (think <p,q> (- H)), where p here means angular momentum :)
It will be most cool if he can use this style to explain the "Feynman belt trick" without symbols or animation :)
Is there a way to slow down using fusion bombs? Even if you manage to bring thousands of fusion bombs with you? Sounds like this is only a sensible approach for sending probes, which will then zip by their target at huge speeds.
If you can get any kind of spaceship up to speeds to reach other stars within reasonable time - you've got an amazing weapon. Just ram into something at full speed. Ok, if you have enough energy to correct course to aim, only.
It's more likely that someone screwed up on the test, or that he cheated somehow. Maybe he's articulate and good at solving logic puzzles, but his Wikipedia article clearly shows that the guy has a screw loose.
You can solve every one of the logic puzzles and it should not give you any score that high, unless it's a specifically designed bogus test to make certain person look and feel good.
It's like saying your regular thermometer returned a reading of 1000C, sure buddy.
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