If the break even with GPU is much earlier, you can invest the profit you gather until the FPGA break even into FPGAs...
Please use math. I'll help: How much sooner do you need to break even with a GPU to be able to take advantage of the Moore's law equivalent to offset the higher electricity cost?
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That chart pretty much says it all: a speculative bubble, followed by a long, slow slide. For the last twenty years, the price has dropped about $8 per month. That's gold. Are you saying the historical chart has predictive power?
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Any comment about this?
Yes, the author's logic circuitry is broken There's a valid answer posted to the article already that brings up electricity costs. It's not just about the ROI with the difficulty levels of today but at what price level a GPU miner vs an FPGA (or ASIC) miner can keep running their rigs. Quoting from the author in the comments: So at the end of the FPGA break even period, you’ll have ONE paid off FPGA cranking out 300 Mhash/sec, or two 6990′s putting out 1.5 Ghash/sec "Paid off" doesn't negate the cost of running the rig. 750W for the GPUs, 16W for the FPGA (numbers from the article) = 47 times more expensive. 1.5Ghash/s vs 300Mhash/s = 5 times more hashing power. 5/47 = 0.11 So, the GPU solution the author proposes, with reinvesting the profits into more GPUs, is 11% as effective as going down the FPGA route. (After having written all this I'm somewhat surprised by my own numbers, but I'll post it anyway. I suspect I'll be corrected)
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no one would publish the info, they'd use it instead
Yes, that's the myth. It's also unscientific in that it's not falsifiable. Not sure why that would have been cheating anyway
It isn't, of course, you just answered it yourself: if they work, everyone uses them and the advantage is removed
The only way to know (not guess) that your arbitrage trade will result in a profit is however if you cheat. Else you're just lucky in that your trade was executed before someone else's trade. After all, you're not trading based off knowledge no one else has. FA fund managers and TA scam artists claim that they can beat the market with their "skill". There's no data set, and there have been much research into this topic, that indicates there is such a "skill". If there were, we'd see a skewed bell curve.
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And, as you admitted, arbitrage opportunities.
... which only exist if you cheat [colocated HFT], else the only factor deciding whether you're successful in using them or not is "luck", not skill, which is what we're discussing. "Alpha" is a very commonly used, and precisely defined quantity
Quantity? Of all the words that's not the one I would've used. But sure, if you want to use that specific definition I would say that available research puts it at 0%. (Your terminology, "getting to it", made me quite sure you were not using the accepted definition but something dreamt up from someone who indeed knows how to make money off traders. By selling them get-rich-quick books)
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I actually think the reaction to our work has overall been really positive, and I'm really happy with that.
The difference lies in understanding how knowledge from research needs to be built from many stepping stones allowing you to infer something with certainty. If you're not used to that thinking people do expect you to close the loop in a very different way than what you set out to do (and which was the correct thing to do). Someone else could, if they want to, build upon your work since they now know what results they can with good measure expect to get. Before your paper it was perhaps expected, but not to a degree where no one could've said with certainty that the results would turn out exactly the way they did. For those who like their things a little more concrete: Before this paper I knew a lot of people who didn't hesitate at all posting one of their public keys for everyone to see (donations, usually) After, some of them consider it to be unnecessary leakage of information. Great work.
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Is your argument then that the search for alpha
No. I'm saying that there's no such thing as "alpha" in FA fund management or TA scams. Do you agree? Your own list of "alpha" examples brought up insider trading, uncovering dirt not known to the larger market etc. Btw, when you talk to someone who studies actual research papers using terminology from get-rich-quick books doesn't infer a lot of confidence in your argument
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A lot of trading I have done arbitrages between currencies and exchanges, and on occasion there have been opportunities to take USD1 per BTC out of the market. Not much to do with chance there - more to do with people, their beliefs and insecurities.
I already pointed out the example of arbitrageurs, but dexfor seems to think what they do is "cheating". Not exactly sure why. Can everyone make money on arbitrage? Is there a guaranteed window of opportunity where you can lock down the trades? Now go back to the earlier posts I did in this thread and ask yourself why I already back then suggested doing colocated HFT as one way you indeed can make money on a market. It's not however part of what the FA fund managers and TA scam artists claim that a successful trader does when outperforming the market The so-called "skill" that never turns up in any documented research.
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there are THOUSANDS of pieces of evidence for the effects of intelligent investing No. Actually there's none. Actually banking is a good point. I let the bank look after some of my money. They invest it and GUARANTEE a modest interest rate of a few percent a year Adjusted for inflation, no.
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Many people have given your examples of how you can beat the market. e.g. investigating company fundamentals that others haven't noticed e.g. spotting patterns that nobody else has.
... and there's no support for the hypothesis that anyone has ever beaten the market trying to do that. That's the whole point. A lot of traders claim they do, but every time (plenty) anyone has looked into this it turns out that there's no predictive ability involved and the number of traders who beat the market is the same as is predicted by chance alone. If you're really interested there's a lot of literature on the subject available. Taleb's "Fooled by randomness" is a great start.
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Read the article kjj posted. I promise you it'll clear everything up.
I don't think you understand the qualitative difference between actual research and people's beliefs There's no data set in which a trader has ever outperformed chance. Ever. The only way to do so is to not base the trades on available market data - which is usually referred to inside trading or other forms of manipulation. If you want to claim differently I urge you to source that information. Please. There's still a Nobel Prize waiting
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Oh yes they do!
Silly monkey, there is no such thing as chance.
For anyone looking for a laugh I strongly recommend reading through bonker's posting history There's some really well done trolling in there. I'm getting pretty sick of all the pseudo-science and fridge-based conspiracy theories up in the thread! You kooks need to read a book and undertand before posting all this buffoonary!
Of course fridges *work* - they make shit cool, it's obvious, just open one up! Do you think because a PC isn't made of beer a fridge wont cool it? Of course it will! The reason a fridge removes heat is because the excess forms drag on the electricity used to run it. Essentially heat is removed from the server room via the electricity supply cable.
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FFS, 3 out of the 4 examples I gave didn't involve cheating.
Alright, let's do this again: No trader has ever outperformed chance. If you have knowledge that is not available to the market, that is cheating, and isn't covered. We're talking about your regular FA fund manager or the TA scam-cooks. Not the CEO telling his friends the results of next week's laboratory testing. If you want to claim that traders outperform chance you're free to source that information. "I believe", "It's obvious", "This book here about successful traders" etc aren't valid sources - usually because they don't take chance into account. There are traders who beat the market 10 years straight. It doesn't say anything about year 11, and it doesn't mean you could've predicted who they would be. That's what chance means here.
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Are you talking about trading in the marketplace or cheating? You seem to seriously confuse the two.
You can reliably find 'alpha' by having an informational edge. I'm sorry. The rest of us weren't talking about cheating.
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I guess my point then is that your data set is probably biased heavily in favour of traders that don't have informational edges.
I still don't understand what the point you're trying to make is. Are you talking about trading in the marketplace or cheating? You seem to seriously confuse the two. So I hope I've given pretty strong arguments that patterns exist, and that some people can use them to make money, even if you can't necessarily prove it using statistical means
"I guess" and "I believe" is considered to be quite poor data. Fact: No trader ever has outperformed chance.
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In this context, I think "pure gold!" is a compliment Forwarded and shared. I like the focus on how Bitcoin simplifies, staying away from projections of future value etc.
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Ray Kurzweil has some nice insights into measuring innovation and growth from a technology perspective.
Yeah how do we get HIM to check out this Bitcoin thing?! Hopefully he'd see how it will bring about the singularity faster, be making all commerce more efficient. Rumor is he takes like a billion vitamins a day so he has a chance of living until the singularity, but he'd be better served by advocating true free market money. http://www.singularitysummit.com/October 15-16, 2011 New York
The Singularity Summit 2011 will be a TED-style two-day event at the historic 92nd Street Y in New York City. The confirmed speakers include futurist Ray Kurzweil, neuroscientist Christof Koch, PayPal founder Peter Thiel, MIT cosmologist Max Tegmark, AI researcher Eliezer Yudkowsky, MIT polymath Alexander Wissner-Gross, DARPA challenge winner Riley Crane, Skype founder Jaan Tallinn, Jeopardy! champion Ken Jennings, economist Tyler Cowen, television personalities Jason Silva and Casey Pieretti, and robotics professors James McLurnkin and Robin Murphy.
I'm quite confident someone from this forum will be there, networking and chatting about Bitcoin.
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I didn't realize at first that what we were discussing wasn't interesting. Oh it could probably be interesting, I just don't understand what point you're trying to make. If you're claiming that by using FA or TA (that is, no insider trading nor theft) it's possible for a trader to outperform chance then feel free to support that viewpoint with data. If you don't claim that, if your point is that the only way to beat the market is to cheat, then I fully agree with you.
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