Funny how now matter where they start out, just about everybody who attempts to take on the 3x+1 problem eventually ends up in pretty much the same place:
In 2007, researchers Kurtz and Simon, building on earlier work by J.H. Conway in the 1970s,[8] proved that a natural generalization of the Collatz problem is algorithmically undecidable.[7]
On the subject of "slightly" shady, let's not forget Barclay's enabling (via a questionable naming rights deal) of neighborhood-killing, taxpayer-fleecing eminent domain abuse, either:
What's the problem with the MTA receiving $200,000 in free money? Nobody even knew what Pacific St. was anyway -- it's a minor one-way street that doesn't even go through at Flatbush. (The station should have been called Atlantic/Flatbush or Atlantic/4th but the MTA doesn't really name stations that way.)
Barclays Center is built above a rail yard, which wasn't really doing much for the neighborhood either. All the hate for Barclays Center is completely misguided and the complaints are just the NIMBY types looking for something to whine about.
So I don't understand how anyone could possibly call redeveloping a rail yard into a stadium "shady". Maybe you don't want the foot traffic in your neighborhood, but it's hard to blame Barclays for that.
But the phrase so muß auch sometimes is used in causal contexts; for example:
Sind zwei Zahlen gegen irgendeine Zahl prim, so muss auch ihr Produkt gegen dieselbe prim sein.[1]
Or if you're into Amtdeutsch:
Sind mindestens zehn Mitarbeiter mit der automatisierten Verarbeitung personenbezogener Daten nicht nur gelegentlich beschäftigt, so muss auch ein bDSB bestellt werden.[2]
Still not quite like the way "so" is used in English, of course.
For senior positions, I will ask a question early in the 5 minutes that is a complete tangent and has little to do with their goal. A star candidate will politely refuse to go down this rat hole and insist that we stay on topic. This seems unfair since an they’re in an interview and just doing what they’re being asked.
Got that right. Trick questions are always unfair (and mildly insulting, and just a plain waste of time) in interviews, just like they are in real life.
"Star interviewers", on the other hand, know that there's no reason to ask candidates to jump through artificial hoops like these.
The fact of the matter is, the hypothesis that "whiteboard skills == mondo real life developer skillz" is pretty much an unspoken, and utterly unquestioned article of faith out in vast stretches of startupland.
Well the trick is not to "memorize" the rational approximation, but to derive it (or rather, the CF approximation to it) directly from first principles, i.e. using the analytic properties of pi itself.
Compared to vinyl, the CD would have seemed invulnerable to dirt and damage. Even more perishable? What bunkum. Every time you play a vinyl record, you're causing a very small amount of irreparable damage. Whereas I can still retrieve a bit-perfect copy of my 20+ year old CDs, even if the underside is severely scratched.
That said, how can you resist the psychological conundrum of knowing that every time you play a record, you are forever damaging it a little bit... That you're forced to destroy what you love. That like life itself, every minute it's turning brings death a step closer. That one day your old records might match your own ears' diminished high frequency response.
OK, let me qualify: Vinyl (when played on commodity equipment) does, almost unavoidably, suffer mild (or worse) analog degradation. This is why (if you're of a certain age) you'll recall that for high-value purchases, we usually made cold replicas (uh, "tapes") to insure that the "master" got played as infrequently as possible.
CDs, however, not only degrade spontaneously (even when stored "properly"), but the degradation is pretty much "either-or" -- when they do degrade, usually the whole thing is pretty much unplayable (unless you're putting it in a very expensive player).
In any case, from my own extensive experience over the years, item for item, I've had quite a few vinyl records suffer "moderate" deterioration (aftr heavy playing), but virtually all were still playable to some degree. Really - unless you leave them in the back of your car for too long, that's usually the worst that happens.
Meanwhile, an annoyingly high % if CDs simply get scuffed, or are left out in the air too long -- and end up irreparably damaged and unplayable (at least on generic players).
Other than some exceptionally rare examples of "bit rot" where errors in manufacturing cause the chemical composition of the plastics prematurely deteriorate, a compact disc will survive at least 50 if not 100 or more years, even with the most exceptionally modest storage and handling conditions.
A scuffed CD is often perfectly playable, and can otherwise be polished back to near-perfect playability with toothpaste and/or ultra-fine sandpapers.
http://xkcd.com/710/