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The Paradoxes That Threaten To Tear Modern Cosmology Apart

Fotis Georgatos What if... (230 comments)

...the universe is not expanding, but the observers instead are in an "apparent shrinking" process, which is only manifesting itself in the form of current observations?
Does that fly in the face of what is presently known?

Don't shoot the messenger, there is no physicist anywhere around here, just a thought challenger ;-)

5 days ago
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Fields Medal Winner Manjul Bhargava On the Pythagorean Theorem Controversy

Fotis Georgatos Re:The truth is redundant... (187 comments)

Indeed.

I may testify that it is called Pythagorean merely because of the path via which the theory's proof got popularised in the western world. No more no less.
This does not make any other discovery paths any less or more important, just parallel efforts (and Chinese are certain to have had many parallel discoveries).

However, when somebody comes to contest the ordering and aetiology of events he better comes with proof about it; that kind of proof is yet lacking or weak at best.
The ancient greek world tends to get much of the credit, merely because the birth and death dates (years) of any people involved, innovators and story-tellers alike, tend to be well-defined or well-bound and as such allow for refutable statements, which is good ground for efforts to reconstruct scientific history. This certainly does not cancel the importance of any discoveries happening in co-developing cultures, yet let's remind that it took centuries back then for ideas to propagate around.

about two weeks ago
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Writers Say They Feel Censored By Surveillance

Fotis Georgatos The only surveillance may be acceptable... (130 comments)

...is when we can watch the watchers;
Let's explain this: 2-way circuits, where watched and watcher are in total symmetry in an unambiguous way.

about three weeks ago
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Does Journal Peer Review Miss Best and Brightest?

Fotis Georgatos Re:So an article critical of the peer review proce (139 comments)

Ah, right. What would you think of peer-reviewers who clap their hands for an article critical of peer-review process? Who's going to pay for this? ;-)

about a month ago
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Does Journal Peer Review Miss Best and Brightest?

Fotis Georgatos Peer-reject the top paper in distributed consensus (139 comments)

Well, yes.

When we build distributed systems, the need to setup a distributed consensus algorithm is appearing in front of us, time and again. Leslie Lamport (of LaTeX & Time-Clocks fame) came up with a novel algorithm during early 90s about to solve this is a very competitive way (Paxos is its name). Sadly, the algorithm remained shunned for a number of years, due to rejection via the very same channel in which it was eventually published many years later. If you realise the immediate practical impact of that algorithm and what an 8 years delay means in the world of CS, and the cost putting all these together, the result is staggering and sobering at the same time.

So, yes, let's now all peer-review this statement: "peer-review systems are imperfect and provide no guarantee for any certain quality result".

Peer review is merely a compromise to increase throughput of papers, which are relatively median and more easily digestible, because this is what keeps the academia salary system in good lubrication. It provides no level of assurance that the most impactful paper gets noticed first, neither that it receives sufficient feedback in order to improve upon original concepts. In sort, human intellect won't be easily replaced via a procedural setup, yet.

about a month ago
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NetworkManager 1.0 Released After Ten Years Development

Fotis Georgatos Re:NetworkManager (164 comments)

Indeed, it sounds as ambitious and coherent as `X`!!!

about a month ago
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How Relevant is C in 2014?

Fotis Georgatos Very... (641 comments)

...relevant... as in:
"nearly each pixel of your screen while reading this is rendered via either C, C++ or something that is written or compiled in C and derivatives".

That makes it sufficiently relevant, doesn't it?

about a month and a half ago
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Ask Slashdot: Best Practices For Starting and Running a Software Shop?

Fotis Georgatos Re:First and foremost (176 comments)

Or, better, find an agent who can act on your behalf and provide for both, against some reasonable cost.
There is no reason to reinvent the wheel, unless you really need to.

about 2 months ago
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Ask Slashdot: Who's the Doctors Without Borders of Technology?

Fotis Georgatos Re:Engineers Without Borders (112 comments)

hm... something interesting might be going on with email... in that case, google-plus-me, we are not all that much hidden in cyberspace!

about 2 months ago
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Ask Slashdot: Who's the Doctors Without Borders of Technology?

Fotis Georgatos Re:Engineers Without Borders (112 comments)

Hi,

Perhaps you are the man; please, please, have a look at this talk by Hans Rosling: http://www.ted.com/talks/hans_...

If you find it inspiring enough, kindly contact back at georgatos _at_ ewb-luxembourg _dot_ org ;
I play as the secretary of the board, at EWB Luxembourg organization (other mundane roles included).

about 2 months ago
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Python-LMDB In a High-Performance Environment

Fotis Georgatos Re:bitching (98 comments)

no NSA project here, unless Digital Pine is a subsidiary? small world, isn't it?

about 3 months ago
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Battery Breakthrough: Researchers Claim 70% Charge In 2 Minutes, 20-Year Life

Fotis Georgatos If so... (395 comments)

...the impact of this would be profound in energy distribution since it can potentially decouple real-time supply-demand constraints.

about 3 months ago
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Send Your Own Radiosonde 90,000 Feet Into the Sky (Video)

Fotis Georgatos There is also SatNOGS... (48 comments)

...for the rest of us who can only afford a 200$ project to hear the beeping sounds from all that craft above 30.000 feet!

http://satnogs.org/

about 4 months ago
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GlaxoSmithKline Released 45 Liters of Live Polio Virus

Fotis Georgatos Re:Imagine the punishment it it killed millions (209 comments)

Well, this makes for an interesting observation:
* If someone knows in advance the herd immunity of a specific ethnic group and happen to be able to calculate differentiated susceptibility rates, then that would count well as deliberate act, regardless even if the calculations were correct or not.

It would still be genocide if an alternative ethnic group was hit hard, as a result of deliberate attempt.

And even if it is not genocide, it is still a criminal act by needlessly exposing members of the public at risk, in a way which is totally avoidable.

about 4 months ago
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Is an Octopus Too Smart For Us To Eat?

Fotis Georgatos Octopus eats its own tentacles when hungry, no? (481 comments)

And if so, what would stop people doing the same?

Live from the field: Octopus just barely escaped being in our menu today, while ordering seafood in a right-next-to-the-sea tavern, outside of Nafplion, Greece.

Well, fact is, octopus IS really admirable animal, among other reasons for passing the mirror test. For the record, dogs typically do not pass the mirror test, ie. cannot consistently recognise themselves in a mirror. Octopus is surprisingly intelligent for an animal that is apparently primitive!

That being said, it's very tasty, too. I'll spare you the details of the great ways to cook it and prepare delicious dishes in the greek cuisine; for one, I have been catching octopuses, even before I was a teenager, in a traditional millenium-old underwater manner using just a harpoon. Big thrill for any young child.

However, there IS a problem with how we catch octopus and much other marine life: it is seriously important to avoid catching/capturing the young animals and only collect the individuals of some age, after having passed from breeding cycle. This is an increasing concern with many fishes, also, and we should all frown upon the practice of catching really really young fish, which is considered a delicacy in some places (Yes, I'm looking at you, South Italy). The sea needs to be respected and cultivated with more seriousness than it is currently done. Human population and technical know-how for fishing have increased in a way that is unsustainable: the sooner we understand it, the better. The sea could and would provide, yet not for the greedy...

about 4 months ago
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Bash To Require Further Patching, As More Shellshock Holes Found

Fotis Georgatos Re:Nothing to do with language (329 comments)

+1

Having been an avid bash user for almost as long as the bug existed, and written countless shell scripts in it for that matter, I cannot avoid agreeing with parent. Fact is, shell language definition is nowhere near high-quality BNF-defined syntactical structure, therefor it is unknown how many more fancy bugs are hidden in the parser. What worries me even more are the famous bashisms, of which we all fall victims sooner or later: *users* and subsequent sysadmins of our produced software may fall victims of such code, suffering from unneeded compatibility issues. Shell scripting is certainly a very kludgy area of modern unix systems and it takes great effort to keep things tidy and maintainable.

about 4 months ago
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Bash To Require Further Patching, As More Shellshock Holes Found

Fotis Georgatos Re:Soon to be patched (329 comments)

RedHat is far more economical than Windows, when you need a big population of nodes, because you can use fi. free Scientific Linux on your many compute nodes and just keep one or two for validation of bugs and formal support. Best of all, it is all legal as long as you don't misrepresent the facts!

about 4 months ago
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Ask Slashdot: Multimedia-Based Wiki For Learning and Business Procedures?

Fotis Georgatos If you expand a bit the circle of candidates... (97 comments)

...I suspect Confluence together with plugin CYO Create-Your-Own would do the job.

As an extra bonus, it might, just might, allow your office documents to be reasonably integrated within the wiki (fi. search box).
Although, I try to stray away of not open source software, I had overall good experience with Confluence a couple years ago.
Also, Apache Software Foundation has also been relying on it for years (after all, that's how they got hacked ;-).
Let us know how it would or would not fit your bill.

about 4 months ago

Submissions

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Network neutrality & bias, revisited

Fotis Georgatos Fotis Georgatos writes  |  about 4 months ago

Fotis Georgatos (3006465) writes "As per Tim Wu, current Internet is not neutral as, "among all applications, its implementation of best effort generally favors file transfer and other non-time sensitive traffic over real-time communications". Please, do remember these words next time you fire up your favourite VoIP or videoconference client and you end up with broken or so-and-so communication!

In fact, if we look at how transportation roads are organised, it is neither free-for-all nor a market-only game: especially cities in Europe tend to have a fused model of lanes for generic usage and dedicated lanes for "responsive" traffic (bus, taxis etc). Why shouldn't the same concept work also on the Internet? If not, why not?

Perhaps, provided capacity by ISPs could be divided in a defined A:B ratio and, ensure that at moments of congestion the capacity is divided at that level. It could be 1:1 ratio (ie. 50% fraction) or it could be something else, however the whole debate going on trying to impose upon us the idea that the solution is either 0 or ...infinity and nothing else, is certainly not very convincing.

Whatever the perfect solution for the Net might be, it should not fail to achieve two major targets:
  • maintain the current ability of the network to serve all classes of users in some auto-tuning mode
  • ensure that incentives stay in place, for ISPs to keep investing in bandwidth and providing new services

Otherwise, how do we expect to have reliable videoconferencing and hard-realtime services down the road?"

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Best PDF handling library, for our own definition of "best" ;-)

Fotis Georgatos Fotis Georgatos writes  |  about 6 months ago

Fotis Georgatos (3006465) writes "I got recently engaged in a conversation about handling PDF texts for a range of needs, such as creation, manipulation, merging, text extraction and searching, digital signing etc etc. A couple of potential picks popped up (PDFBox, itext), given some Java experience of the other fellows. And then comes the reality of choosing software as a long term knowledge investment! ideally, we would like to combine these features:
  • open source, with a community following ; the kind of stuff slashdotters would prefer
  • tidy software architecture; simple things should remain simple
  • allow open API allowing usage across many languages (say: Python & Java)
  • clear licensing status, not estranging future commercial use
  • serious multilingual & font support
  • PDF-handling rich features, not limiting usage for invoicing, e-commerce, reports & data mining
  • digital signing should not go against other features

I'd like to poll the collective slashdot crowd wisdom about if/which PDF related libraries, they have written software with, keeps them happy for *all* the above reasons. And if not happy with that all, what do they thing is the best bet for learning one piece of software in the area, with great reusability across different circumstances and little need for extra hacks?

ROTG is not at all a good answer; I'd really like to hear the smoked out war stories. It is easy to obtain a list of such libraries, yet tricky to understand how many obtained success with them!"

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