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RAYA: Real-time Audio Engine Simulation In Quake

multi io Re:What if you tilt your head in headphones? (79 comments)

I never understood those head trackers. I mean, if I have a screen in front of me and turn my head to the right, then the display may very well change but I'm now looking to the right so won't see it (or need to look out of the corner of my eye). If instead I have a bank of monitors, so that I could see any adapted view - it wouldn't need to change the display!

http://youtu.be/Jd3-eiid-Uw

yesterday
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Email Is Not Going Anywhere

multi io Re:serious confusion by the author (235 comments)

Email is actually a tremendous, decentralized, open platform

Right, because people understand and care about that.

You could say people didn't understand or care about the web being a decentralized, open platform either. But that was still the reason why it took off, and ultimately the (indirect) reason why everybody started using it.

about two weeks ago
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Email Is Not Going Anywhere

multi io protocols vs. web sites (235 comments)

The main difference is that email is a (suite of) protocol(s), while all those other things are essentially web sites (with a mobile app, and a REST API if you're lucky). Which means that with email, you can deploy a complete implementation yourself, in your own organization or wherever you want, without having to rely on specific 3rd party services or software. This may ultimately make email last longer, because it is truly decentralized. It also means that email can scale up and down effortlessly. You won't send your cron job errors to Facebook or Twitter (or Asana).

about two weeks ago
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Report: Nuclear Plants Should Focus On Risks Posed By External Events

multi io Re:already done (133 comments)

That was quite interesting, thank you.

about a month ago
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Report: Nuclear Plants Should Focus On Risks Posed By External Events

multi io Re:already done (133 comments)

Now, Post-Fukushima, plants are adding response capabilities for apocalyptic type scenarios even though three is nobody that can provide an example of how such an event may happen for the particular site short of some major war type event. Fukushima was simple...don't put reactors that were not design to operate underwater where they can find themselves underwater. Given the situation, the outcome was quite easily predictable.

Can you cite any pre-Fukushima regulation that mandates this? Because if you can't, then that's a case of "hindsight is 20/20". I'm pretty sure the type of thing that happened at Fukushima has always been thought to be a "there is nobody that can provide an example of how such an event may happen for the particular site" type of scenario -- until it did happen.

about a month ago
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Damian Conway On Perl 6 and the Philosophy of Programming

multi io Re:Fourteen years? (132 comments)

Come on! In fourteen years you can develop your OS from scratch. Bearing in mind that Perl is noting more than a scripting language, what the hell have they been doing?

If I had to make a totally uninformed guess, I'd say they probably read and learnt so much about languages, interpreters and compilers and stuff that they're now totally insecure as to how to proceed.

about 2 months ago
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Germany's Glut of Electricity Causing Prices To Plummet

multi io Re:Another misconception bites the dust (365 comments)

I don't think anybody can give you am exact date on when coal power will be phased out

Yeah, because nobody knows how you could run the grid without them. You certainly can't run it just on solar+wind+some measly storage capacities on the same scale as today's. If Germany were to run on solar+wind plants alone all the time, they'd need the ability to store one or two weeks of electricity consumption, which amounts to 10..20 TWh -- that's at least 200 (two hundred) times as much capacity as is installed nationwide today. Which means you'd need totally different storage technologies, some of which you may have to invent first. Nobody is sure how (and whether) this might work.

but the energy transition effort enjoys fairly broad support among the German public

Which doesn't change the physics. And, what actually "enjoys broad support" is getting rid of all the nuke plants. So the only date that was fixed early on in this whole effort is the day when the last nuke plant would be shut off. Because not doing that would've cost Merkel her reelection. Everything else isn't nearly as important.

about 2 months ago
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Ask Slashdot: Communication With Locked-in Syndrome Patient?

multi io Re:As painful as it is... (552 comments)

If she can't tell you she doesn't want it unplugged then it isn't.

She is fully conscious, so she can tell him. "Telling" doesn't require verbal communication ability.

about 3 months ago
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Ask Slashdot: Communication With Locked-in Syndrome Patient?

multi io Brain-Computer Interfaces (552 comments)

It's not a direct help, but I can tell you that it's certainly possible these days to communicate and control external actuators using brain activity only. What they're doing (AFAIK) is record the 2D electrical activity on the brain's surface (using EEGs on the scalp or -- for even greater accuracy -- below the skull bone), analyze it statistically and deduce what the person is thinking of doing, e.g. move a mouse pointer in some direction and choose which of several buttons to press. It requires a learning phase, but then the accuracy is quite high. I'm not sure about the actual bandwidth that you can achieve when communicating using this method only, but it's much better than what was possible only a few years ago, and it's improving further.

Brain-Computer Interface-The HCI communication channel for discovery

brain-controlled Pinball

(the links refer to a Berlin-based research group -- but that's just a coincidence because I live there a saw a presentation a few weeks ago. I'm sure there's even more research on the subject in the US).

about 3 months ago
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Wayland 1.5 Released

multi io Re:Wayland is nothing until (179 comments)

It seems the real remote drawing / display technology these days is HTML/CSS, carried via HTTP. It even supports running client-provided code locally on the display server, as did NeWS and DPS 20 years ago, to render animations and depressed beveled buttons without incurring a server roundtrip (and Javascript is generally much nicer than PostScript -- you can even run the whole program on the display server if you want). And the protocol is a bit backwards in that the display server (aka "web browser"), rather than the client (aka "web server"), initiates the protocol requests.

[scnr]

about 3 months ago
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Fusion Power By 2020? Researchers Say Yes and Turn To Crowdfunding.

multi io Re:I'd not trust the authors too much. (280 comments)

Tokamak power plants would use the energy of the 14MeV neutron produced by the DT fusion reaction to heat water to steam and generate it directly. `Moving charged particles' is just a plasma

Uh, a plasma contains charged particles, but is neutral overall (normally). And the particle motion is undirected. What they claim to get out it is a pulsed, directed beam of multi-MeV 4He ions (and only those -- the electrons fly away in the opposite direction), which could be converted into electricity directly (via induction).

about 3 months ago
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Mathematical Model Suggests That Human Consciousness Is Noncomputable

multi io No it isn't (426 comments)

I hardly understand a goddamn word of TFA and have never heard of the "Integrated information theory", but I know that TFA's proposition must be false because the brain is based on the laws of physics, which are computable. Q.e.d.

about 4 months ago
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Experts Say Hitching a Ride In an Airliner's Wheel Well Is Not a Good Idea

multi io Re:Survival rate under-estimated? (239 comments)

Yeah, at least until they hit the water at 700km/h...

Eh, terminal velocity in the lower atmosphere is abound 250 km/h. Not that it would make much of a difference though.

about 4 months ago
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The Design Flaw That Almost Wiped Out an NYC Skyscraper

multi io Re:Math (183 comments)

You're trying to make stuff up. The probablity not being 0.5 stems from the fact that there will be some years in which more than one storm occurs, and this must be "balanced out" by there being no storm at all in more than 50% of the years (and thus, a probability < 0.5 of a storm occuring in a particular year). If storms don't happen independently, but come in "packs" as you suggest, and you're still holding up your scenario of one storm every two years on average, then the chance of a storm occuring in a particular year will be even lower than 0.393.

about 4 months ago
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The Design Flaw That Almost Wiped Out an NYC Skyscraper

multi io Re:Math (183 comments)

what? where the hell did you pull that from? why 1/e?

if a storm hit every two years, your method would give a probability of 0.393.

Right.

what sense does that make?

Imagine you're throwing a 100-sided dice 100 times in two years (i.e. 50 times a year). Then you statistically throw a particular number (say, 1) once every two years. The chance of throwing that number in one year (i.e. in 50 throws) is 1-(99/100)^50=0.395 (=the inverse of not throwing that number 50 times in a row). There you go. If you transition from discrete to continuous probabilities, the number of dice sides and throws approaches infinity, and lim_{x->infinity} (1-1/x)^x = 1/E.

about 4 months ago
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The Design Flaw That Almost Wiped Out an NYC Skyscraper

multi io Math (183 comments)

LeMessurier calculated that a storm powerful enough to take out the building hit New York every 16 years." In other words, for every year Citicorp Center was standing, there was about a 1-in-16 chance that it would collapse."

Umm, actually that would be p=1-(1/E)^(1/16)=0.0605869 (about 1-in-16.5052).

about 4 months ago
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Heartbleed Coder: Bug In OpenSSL Was an Honest Mistake

multi io Re:Not malicious but not honest? (447 comments)

Why does the heartbeat request even contain the length of the heartbeat block?

The real question is, why even have the whole heartbeat TLS RFC in the first place, when the underlying TCP layer already checks for timeouts all by itself (you can run TLS over UDP, but hardly anybody does, and then you'd specify the heartbeat stuff only for that use case).

about 5 months ago
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UN Report Reveals Odds of Being Murdered Country By Country

multi io Re:I've made a decision (386 comments)

In order to live as long as possible, I have decided to have gender reassignment surgery to become a woman, and I will move to Antarctica and start a utopian lesbian society, since there are no murders there. I haven't worked out the details yet, but it seems like a no-brainer.

You could start with killing somebody else -- the odds of *two* murders occuring would be even lower!

about 5 months ago
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Stephen Colbert To Be Letterman's Successor

multi io Genuine? (193 comments)

"Simply being a guest on David Letterman’s show has been a highlight of my career"

Wait...he really meant that. It's kinda creepy when Colbert makes out-of-character statements. And now there's gonna be a whole show full of those? Ugh...

about 5 months ago

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