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2018, FWIW. I'd be curious to hear how (if) things are different now.


Pay has gotten better, plus the individual branches all have stronger CyberCorps now.

That said, CyberCom still has issues because it's a unified command and not a branch, which means it has limited say and will always get overshadowed by individual branches and the NSA.

Another interesting change is the rise of private sector players and public-private partnerships to help remediate the pay gap - this is what China and Russia did due to similar issues around renumeration, and most other NATO+ allies like Israel, UAE, Singapore, etc leverage this model.

Anecdotally, outside of the NSA, it appears that most what I'd term "white collar lifers" within branches prefer Intel over Cyber because it's easier to learn due to less STEM, and a significant portion of those who do Cyber will tend to leave for private sector.

That said, Cyber Reserves forces are fairly prominent now and probably the best way to remediate this gap.

I'm biased, but imo, the US needs to adopt the Israeli model of public-private offensive security capabilities plus a strong reserves component, because the pay gap and the respect gap just won't be fixed due to internal intertia in the services.


USAF now has Cyber Warrant Officers.


Year added above. Thanks!


In relatively recent versions of Anki, you can create nested Cloze deletions: "{{c3::{{c1::foo}}{{c2::bar}}}}" will show you cards "[...]bar", "foo[...]", and "[...]", in that order, all with answers "foobar".

As for multiple choice and q&a---my practice is to make both Cloze and basic cards for, well, most things---Cloze are good for the early steps and for seeing how different pieces fit together, but basic cards are more demanding, and without them I don't quite feel like I've learned a thing.

(FWIW my primary use is physics & the mathematics behind it, not language learning.)


I think that's customary at LessWrong, more or less---if folks write something that's of interest to the community, they'll double-post, blog and forum. Likewise things get cross-posted to the EA forum and maybe other places.


Yes! My last year in grad school, this is part of how I kept my sanity: random little side-projects on which I could make concrete progress in a couple of evenings.


Well, to be fair, you actually also have to put in some numbers, too: masses, mixing angles, coupling constants, and the Higgs vacuum expectation value. (See https://en.wikipedia.org/wiki/Standard_Model#Construction_of... .) But, yeah, that symmetry description is incredibly powerful.


I'm curious about his use of Runge-Kutta. IANA numerical methods expert, but it seems like this is exactly what symplectic integrators (https://en.wikipedia.org/wiki/Symplectic_integrator) are for. Looks like he gets very good results, but how trustworthy is Runge-Kutta?

From his perspective, of course, using Runge-Kutta makes perfect sense. This is "Huh: I have this tool, and applying it to this problem wouldn't be too hard; would the tool work?", not "I should create a new tool."

ETA: couple of forgotten words.


I agree in general, and it would have been nice to see some plots of some of quantities that should be conserved, e.g. how well does his simulation preserve the initial energy and angular momentum?

Having said that, it is an adaptive RK scheme, and it seems to work pretty well, the article shows that the results match some reference data quite well, and it even captures some quite subtle effects, most notably the influence of the moon.


He mentions a 10% error in energy conservation, so not too great.

Probably he should have done research before he started, he would have found one of the several lecture notes that tell you how to integrate orbits. They tell you that symplectic methods are great for time reversible problems.

Or he would have found one of the public codes for integrating the solar system very far into the future.


Initial energy is conserved at the 10% level, which is not great.

I really didn't expect the RK4 thing to work at all, and once it was clear it kind of did decided to push on for fun.


That was precisely my logic. Maybe I'll build a symplectic integrator in future, but this was a case of "Hey, I've got this hammer, maybe I can drive this screw with it!"


A related previous article: "NASA Study Proposes Airships, Cloud Cities for Venus Exploration" (http://spectrum.ieee.org/aerospace/space-flight/nasa-study-p...). Discussion: https://news.ycombinator.com/item?id=8760732


It's not clear to me how these warrants are "automatic". FTAmendments:

"a magistrate judge [...] has authority to issue a warrant to use remote access to search electronic storage media [...]" (emphasis mine)

IANAL, though; could someone who knows more explain what's going on? How will the procedure and requirements for obtaining a warrant for such "remote access" differ from those for searching, say, a house?

Edit: as I typed, slapshot posted some helpful explanation.


Seconded. I'd note that while Johnson's memoir (/Kelly/) is more inspiring, I recall there being more meat in Rich's memoir (/Skunk Works/)---more discussion of the technology, organizational dynamics, and interpersonal politics. Both are, as you say, very much worth reading.


Cached: https://webcache.googleusercontent.com/search?hl=en&q=cache%...

(I couldn't get to the original; I suppose the site is attracting an entirely deserved flood of attention.)


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