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Comments

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Black Holes Not Black After All, Theorize Physicists

ceoyoyo Re:Mostly done by 1985... (224 comments)

From the perspective of someone falling in, the outside universe experiences an infinite amount of time. So if it's going to end, it's going to end before the infalling observer has even the very short period of time required to cross the event horizon.

If the universe doesn't end, it will have infinite time to cool off and the black to hole to evaporate from Hawking radiation. To conserve energy that means the infalling observer must observe a greater and greater amount of Hawking radiation the closer he gets to the event horizon, and the horizon will always recede from him as the hole shrinks. When he eventually reaches the centre he'll discover that there's no black hole left.

3 days ago
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Black Holes Not Black After All, Theorize Physicists

ceoyoyo Re:Mostly done by 1985... (224 comments)

Physicists originally called black holes "frozen stars" because the flow of time stops at the event horizon. Nothing can fall past an event horizon in outside time because that would take an infinitely long time to happen. It also can't happen from the perspective of an observer falling in, provided the outside universe has a finite lifetime. So you can never get a singularity.

I'm not really sure why that idea doesn't get more attention from today's physicists.

4 days ago
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Marvel's New Thor Will Be a Woman

ceoyoyo Re:Ridiculous! (590 comments)

Not the original poster, but I agree. I think it's great to have strong female main characters, on an equal footing with strong male main characters. But this ain't it. They're taking a character who is male, both in mythology and in their own storyline, and changing him into a woman. Why? Because they can't write female leads so they'll just take a male one and give him boobs? Because a female main character can't be successful without all the momentum gathered by that character being male for a thousand years?

Ridiculous seems like a reasonable summary.

about two weeks ago
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Another Dementia Test Oversold

ceoyoyo Surprise (24 comments)

Hey, the condescending article manages to not know what positive predictive values are!

about three weeks ago
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Another Dementia Test Oversold

ceoyoyo Re:Basic statistics (24 comments)

Learned is such a strong word. I teach evidence based medicine, including test evaluation to med students and residents. I also have to try and explain it to practicing physicians.

about three weeks ago
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Coddled, Surveilled, and Monetized: How Modern Houses Can Watch You

ceoyoyo Re:What do these systems cost without monetizing? (150 comments)

Nest thermostats don't seem the least bit inexpensive to me. Knowing how to actually build one, they seem to cost right about what the hardware and back end infrastructure would run, plus some boutique-level profit. You could make one for a quarter of the cost without the cloud stuff.

about three weeks ago
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Ask Slashdot: Switching From SAS To Python Or R For Data Analysis and Modeling?

ceoyoyo Use both (143 comments)

I find R's syntax really annoying for actually doing anything. So I do all the data acquisition, manipulation, etc. in Python and use the RPy2 bridge to just run the actual analysis in R. Best of both worlds.

about three weeks ago
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Facebook Fallout, Facts and Frenzy

ceoyoyo Ethics (160 comments)

Human experimentation without review board approval and informed consent violates a number of national and international laws. It doesn't matter whether anyone gets hurt.

about three weeks ago
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FAA's Ruling On Smartphones During Takeoff Has Had Little Impact

ceoyoyo Re:He definitely never has been on monkey class... (128 comments)

Learn to sleep on planes. It changes your life.

I pretty much automatically fall asleep when I sit down now. Usually open my eyes for the takeoff, then fall asleep again well before cruising altitude.

It's actually a challenge staying awake part of the flight while flying west to prevent jet lag.

about a month ago
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Supreme Court Rejects Appeal By Google Over Street View Data Collection

ceoyoyo Re:Everyone on the underhanded snooping bandwagon? (113 comments)

I've gone out scanning for APs. Recording SSIDs and data packets are COMPLETELY different things. You don't "inadvertently" do the second while doing the first. In fact, actually connecting to the APs just slows your entire operation down.

about a month ago
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Supreme Court Rejects Appeal By Google Over Street View Data Collection

ceoyoyo Re:This is rediculous (113 comments)

And there are laws specifically against recording unencrypted signals emanating from someone's house (the wiretap laws in question). What's your point? The taking pictures through your window analogy is pretty much exactly what happened.

Google didn't just scan SSIDs like a regular war driver would, they connected to the APs and recorded traffic. That's not just "oopsie, it was an accident."

about a month ago
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House Majority Leader Defeated In Primary

ceoyoyo Re:Questions... (932 comments)

Americans don't seem to like independents. They usually don't vote for them, and there seem to be laws to try to discourage them. Perhaps the ones in power want to stay that way so they pass whatever laws they think they can get away with to keep challengers at bay.

about a month and a half ago
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House Majority Leader Defeated In Primary

ceoyoyo Re:Anti-incumbent sentiment is running extremely h (932 comments)

Actually, research suggests that once you have enough basic funds to get yourself on the radar, more doesn't make much difference at all. The biggest factor in swaying elections is the candidate's personal attractiveness. Mostly visual.

about a month and a half ago
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House Majority Leader Defeated In Primary

ceoyoyo Re:Democrats voted (932 comments)

I'm going to cherry pick a bit on your absentee list. Domestic spying? Your republic will boldly march on. Wait, you don't like the idea of being spied upon in America, land of the free? Is it really that different to propose laws (from an extreme religious motivation) that control women's fertility and ban stem cell research? Or the biggest one of all, put a discriminatory, rights-removing amendment in the constitution of the United States itself?

about a month and a half ago
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Was Turing Test Legitimately Beaten, Or Just Cleverly Tricked?

ceoyoyo Re:but that's the problem with the turing test... (309 comments)

Sure, nobody actually runs a Turing test. It's too hard. If a real Turing test were ever passed there wouldn't be any dispute. They're ALL restricted versions where the judges go easy on the computers.

The 13 year old gambit isn't the problem though (it's the judges). In fact, it suggests all sorts of strategies for the judges to trip up the computer. I just had a quick conversation with Eugene where I told him a story about a pretty girl asking a guy to go to the movies, and the two of them sitting right at the back. He changed the subject. Obviously not a 13 year old boy.

I agree with you, a proper Turing test is the best, possibly the only way we currently have to assess an AI. But if you have a computer that you think is at the level of a five year old, for example, find some child psychologists and let them talk to it and some real five year olds. Or thirteen year olds. Or adults. Age doesn't matter.

about a month and a half ago
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Was Turing Test Legitimately Beaten, Or Just Cleverly Tricked?

ceoyoyo Re:but that's the problem with the turing test... (309 comments)

So are assuming that this program is uncooperative because it's supposed to model a 13 year old? I've talked to it. It doesn't seem to be uncooperative. It's only convincing if you ask it simple factual questions though. Anybody who doesn't think intelligence is about memorizing trivia, the very thing the 13 year old gambit is supposed to help explain away, would see through it very quickly.

about a month and a half ago
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Was Turing Test Legitimately Beaten, Or Just Cleverly Tricked?

ceoyoyo Re:but that's the problem with the turing test... (309 comments)

Over 50% is your test. Turing didn't suggest any such thing. IIRC, in his paper he suggested only that judges not being able to tell the difference between a computer and a person was the criteria for passing. Your criteria requires that the computer beat the person more often than chance.

about a month and a half ago
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Was Turing Test Legitimately Beaten, Or Just Cleverly Tricked?

ceoyoyo Re:but that's the problem with the turing test... (309 comments)

The slow typer is only a problem because of the artificially limited (for practical purposes) duration of the Turing test. It's not the same situation as a 13 year old. The language problem is similar, if the subject's understanding of the language is so bad you can't ask reasonable questions.

Age is different. In fact, I'd argue that mixing in children and non-native but still reasonably fluent English speakers is a valuable addition to the test. It distracts the judges from things that don't matter like grammar and factual knowledge, leaving them with more of the important things.

Realistically, the actual Turing test is so hard that nobody ever runs it. The chatbots do reasonably well at restricted Turing tests where the judges are focusing on knowledge and sentence parsing, and do horribly at cognitive tasks like understanding a story and forming defensible opinions based on it. The former are things 13 year olds aren't so good at. The latter is something they can do quite well.

about a month and a half ago
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Was Turing Test Legitimately Beaten, Or Just Cleverly Tricked?

ceoyoyo Re:but that's the problem with the turing test... (309 comments)

The answer to that philosophical musing is "it doesn't matter."

You can't prove to me you're "conscious." If you're honest, you can't prove to *yourself* you're "conscious." The truth is, if a "non-conscious machine" can mimic the details of a "conscious" human in an unrestricted way, your distinction between them is nothing but magic.

about a month and a half ago
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Was Turing Test Legitimately Beaten, Or Just Cleverly Tricked?

ceoyoyo Re:but that's the problem with the turing test... (309 comments)

The Turing test, as envisioned by Turing, is an excellent test of intelligence. The "Turing test", as implemented with scripted questions, pre-chosen topics and limited length exchanges isn't.

about a month and a half ago

Submissions

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Martian Volcanoes May Not Be Extinct

ceoyoyo ceoyoyo writes  |  more than 6 years ago

ceoyoyo writes "The Tharsis volcanoes on Mars show evidence they may have erupted within the last two million years and may still be dormant, not extinct. The three volcanoes also show evidence of erupting in a chain, much like the Hawaiian islands, with the southernmost showing the oldest lava flows and the northernmost the youngest. On Earth chains of volcanoes are produced when the crust moves over a magma plume in the mantle. On Mars, since there is no tectonic activity, the researchers theorized that the magma plumes themselves move under the fixed crust."
Link to Original Source

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