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ucho

203 karma · joined March 29, 2012

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ucho··on Hash Functions all the way down
Was it? The only issue I remember was with String before Java 1.2, where only few characters where used in hash (instead of all) leading to abysmal performance in many applications.
ucho··on BitFinex down due to Bitcoin security breach - 120k BTC stolen
What happens to people/exchanges that had already accepted stolen cryptocoin after such "justice forks"?
ucho··on Google Cuts Its Giant Electricity Bill with DeepMind-Powered AI
Yeah, that are exactly the arguments used by companies selling "Intelligent Transportation Systems". After deployment: surprise - there aren't any noticeable changes, except for places that are performing worse and require manual tweaking. Also the best way to reduce traffic in city is to reduce vehicle flow into the city which only moves jams to other places.
ucho··on Let's Play a Game – find bugs in popular open-source projects
It is easier to find a bug then to select token that is "correct". Also some of those bugs are detected even by GCC.
ucho··on How Two Seattle-Area Brothers Made Dwarf Fortress
What I don't like about Rimworld (and Gnomoria, to lesser degree Banished) is early game difficulty. In DF all you have to do is build farm + still, after that all is up to player to decide. In other games missing a single element( like cooling in Rimworld) ends with almost everyone dead in single season.
ucho··on 95% of HTTPS servers vulnerable to trivial MITM attacks
Acting as "Evil twin" for hotspots in public places seems to be feasible. I understand why people aren't using cert pinning, that can completely break site, are there any practical reasons not to use HSTS?
ucho··on Java for Everything (2014)
Code completion(API) has big impact on my productivity in larger systems. With dynamic typed languages I ended up with type annotations everywhere - so advantage of not having to declare variable types kinda disappears.
ucho··on NPM and Left-Pad: Have We Forgotten How to Program?
Did you add dist/five.js to commit by mistake?
ucho··on DeepMind Challenges for StarCraft
Maybe Civ? I guess the single game takes too long but I still would love to see it as default AI is totally crap and relies on handicaps.
ucho··on Is It Cheaper to Stay in an Airbnb ‘Entire Home’ Rental or a Hotel?
I am not sure if it is a ripoff but it is quite close to protection racket - either you are available one of such sites or your object never gets any tourists. Looks like another industry that naturally goes in monopoly/oligopoly direction.
ucho··on AlphaGo beats the world champion Lee Sedol in first of five matches
Might not work for long. There are already contests for best generic solutions[0] and it seems like quite popular topic in machine learning.

[0] https://en.wikipedia.org/wiki/General_game_playing

ucho··on How to Pass a Programming Interview
I don't think it matters. No one want's to see import/includes on blackboard and they don care much if you remember if method on some object was called len(), size(), count() or length.
ucho··on Curl vs. Wget
> Wget's [..] defaults are more sane

Does it finally use filename from "Content-Disposition" without need for any switches?

ucho··on How Wired Is Going to Handle Ad Blocking
> Soon we will need to pay for every site we visit. That's aweful.

I don't think that is something bad. For example clickbait would slowly disappear - without ads there is no need to trick users into more page views.

ucho··on Negative creep
Will it ever be more popular? EU is recently thinking about banning crypto currencies. This might end with ID verification requirement for all exchanges. Then Visa and other CC issuers will ban anything related to BitCoin, just like PayPal did and whole market will be dead.
ucho··on LinkedIn Tumbles 30% on Earnings Guidance
Not so spooky anymore: http://www.businessinsider.com/linkedin-settles-class-action...
ucho··on Nuclear fusion device's first test with hydrogen declared a success
Maybe it is a dumb question but does fusion really matter that much? I mean that nuclear reactors are ridiculously expensive to build and maintain and fusion only removes the cost of fuel acquiring and disposal. It might be 20%, 30% or even 40% cheaper but still not a revolution, no "Free energy for everyone". Are people over-hyped?
ucho··on The arrival of the long-heralded friction-free economy
I wonder if software industry depends too heavy on ability to deploy updates. Some time ago I watched Discovery's documentary about Maersk Triple-E. Engines got produced on other side of globe and couldn't really be tested until ship left the drydock. I guess that replacing the engine required as least disassembling 10% of ship. So engineers responsible for unit had only one attempt and had to made it right.
ucho··on Annoyances of API Design
I still don't remember if it is useradd or adduser - one is core linux command, other is script that also set ups home directory and stuff like that.
ucho··on Startup Interviewing is Fucked
I can't understand why HackerRank gained such popularity. Among many similar sites it has lowest quality of problems, especially input/output specification. The "pay for more test suites" strongly reminds me Pay to Win ...
ucho··on VMware Confirms Layoffs as It Prepares for Dell Acquisition
Many countries are loaded with debt to the maximum their debt/GDP ratio allows and will be in big trouble when even slightest recession appears - so they will prefer to apply stimuli even if it doesn't make life better for average Joe.
ucho··on Firefox Can Now Get Push Notifications from Your Favorite Sites
I guess they were waiting for Electrolysis to be integrated in official release, has that already happened?
ucho··on Why BPG will replace GIFs and more
GIF sites are moving to GIFV that is just a video file, it looks like there is no real need for any new format.
ucho··on Microsoft's forthcoming Minecraft Education Edition is written in C++
Java JIT is the state of the art, in most generated code is _only_ 50% slower despite totally wrecking cache/memory locality.
ucho··on Why do people keep coming to this couple’s home looking for lost phones?
Ignoring everything else - if it the phone that went missing, should the location at least be accurate to nearest base station. In case of missing child operator would provide triangulation results, right?
ucho··on How do bank payments actually work?
It isn't, but at least for a long time that wasn't an issue. Most terminals were set to online mode, so pin wasn't verified by card but by bank. On the other hand the ones in UK mostly work in offline mode which requires the PIN to be verified by card. Not a great thing to discover abroad that your card chip doesn't contain any PIN at all. Good thing is that it can be placed/updated on card by simply using ATM.
ucho··on How do bank payments actually work?
> So the payments network - the hard part - was already in place.

Similar example: Polish mobile payments company (Blue Media) wanted to speed up most commonly used service - charging prepaid GSM accounts so they created account in pretty much every existing bank as internal transfers are pretty much instant. This also required to integrate with many APIs to fill out/automate transfer details. Thanks to that it was easy for them to offered express transfers (5-15 minutes instead of standard 2-4 hours)

ucho··on Adblock Plus blocked from attending online ad industry’s big annual conference
> potentially existential threat to the industry

I wonder if it really is a threat. Serving anything related to ads from same domain as content will make it much harder to create reliable blocking rules[1]. If ad blocking requires heuristics like the ones in Readability extension it won't be as popular.

[1] as a bonus it instantly kills simplistic host file method

ucho··on Facebook friend-finder unlawful in Germany
> I seriously don't know how Linkedin found all these people

By going through everything in mailbox? I think it is quite scary - Linkedin asks people for their email password and they type it in, like something obviously required for that site to work.

ucho··on Obama administration ready to put $4B toward self-driving cars
Human drivers have obligatory rest time - without them the goods can be transported faster and allows to keep smaller fleet. Also lets say that total cost of self driving equipment is now around $20k-$30k - that is huge % of car price but acceptable compared to truck price.
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