Someone should really write a prediction market using bitcoins -- it would be simpler for US-based users to participate.
I think he means a prediction market about propositions that do not themselves relate to bitcoins, which one can bet on with bitcoins.
Fascinating. Nice work Wei Dai!
Can you (Clippy) or someone else give me an estimate of how much bitcoin can be generate per some standard unit of CPU time? Or a link to such?
I also assume that there is no convenient way to trade bitcoin for, well, actual mainstream money.... Can you confirm that? What resources can Clippy expect to be able to buy with bitcoins? Apart from Free Software Foundation donations that is.
Bitcoins are awfully deflationary. This makes them a good investment, but isn't healthy for a long-term bitcoin economy. Is there any way to program an electronic currency system that will make the creation of currency dependent on recent changes in value to maintain a stable value of currency? Like the Fed, except automated?
I just got bitcoin set up, but my cursory examination of the less technical information available leads me to believe that it would be return-smoothing and generally a more clever idea to join a mining pool than to go it alone. But the one I found appears to be closed. I'm mostly fumbling along on a shallow understanding of what I'm dealing with, here, so somebody tell me: is a bitcoin mining pool the sort of thing where a bunch of people (say, LWers who want to mine bitcoins) can just up and start one? Anybody want to throw in with me? (I contribute zero knowhow, as is probably evident.)
One should keep in mind that by not pooling you aren't actually losing output, you just have a bigger variance in outcome. If you intend to keep mining for at least a year or so, having a week or two with no return won't be a big deal. If you do not intend to keep mining for that long, it's hardly going to be worth the effort of setting up a pool.
On a separate note, a macroeconomic scenario where people accumulate wealth on a large scale by running powerful computers performing useless hash checks (while they could be helping with Folding@home or something) is a little disturbing. At least precious metals and gems are nice to look at, and have several industrial uses.
The current high levels of Bitcoin volatility are obviously exciting for day traders, but bad for commerce. Some clever people must already be thinking about Bitcoin futures as a way of damping the market.
Mt Gox bootstrapped in a year, could a BitFX do likewise?
An obvious question is why anyone would buy futures initially? Until the price (eventually) stabilizes, maintenance levels would continually be breached, resulting in a blizzard of margin calls.
Oh, and hi everyone. :-)
Same Wei Dai.
I don't know much about bitcoin, but my priors on this kind of thing say that it's unlikely that bitcoin is profitable to be run on a large scale given the expense of electricity. But if you are beaming computational power from the safe zone, then this should work well.
Also, do you think you could win at poker? I can probably get you an account to use with a small amount of working currency in it.
After thinking about it and looking at the current community and the surprising amount of activity being conducted in bitcoins, I estimate that bitcoin has somewhere between 0 and 0.1% chance of eventually replacing a decent size fiat currency, which would put the value of a bitcoin at anywhere upwards of $10,000 a bitcoin. (Match the existing outstanding number of whatever currency to 21m bitcoins. Many currencies have billions or trillions outstanding.)
Cut that in half to $5000, and call the probability an even 0.05% (average of 0 and 0.1%), and my expected utility/value for possessing a coin is $25 a bitcoin (5000*0.005).
My laptop's GPU gets ~49 megahashes a second (apparently I have one of the best-suited ATI cards), and another calculator says the average time to cracking a block of 50 coins is 39 days - or ~1 coin a day, averaged. So my expected utility per day is ~$25 a day.
At an estimate, it took about 3 hours to get poclbm
running properly; I value my time at about $10 an hour, so my time will be repaid after 2 or 3 coins, and I'll have a healthy expected profit after one block of 50 coins.
How robust is this calculation? Let's assume that I reinstall once a year and spend ...
~1 coin a day, averaged. So my expected utility per day is ~$25 a day.
If you value 1 BTC at $25, you should just buy BTC with cash directly. I understand there are websites that allow you to do this, and the current price is less than $2 per BTC.
Apparently, either most people have not considered that a bitcoin may eventually be worth more than $10,000, or they think the probability of this happening is closer to 0.01%.
Mencius Moldbug weighs in with his version of this argument:
"If Bitcoin becomes the new global monetary system, one bitcoin purchased today (for 90 cents, last time I checked) will make you a very wealthy individual. You are essentially buying Manhattan for a quarter. There are only 21 million bitcoins (including those not yet minted). (In my design, this was a far more elegant 2^64, with quantities in exponential notation. Just sayin'.) Mapped to $100 trillion of global money, to pull a random number out of the air, you become a millionaire. Wow!
So even if the probability of Bitcoin succeeding is epsilon, a million to one, it's still worthwhile for anyone to buy at least a few bitcoins now. The currency thus derives an initial value from this probability, and boots itself into existence from pure worthlessness - becoming a viable repository of savings. If a very strange, dangerous and unstable one.
I think the probability of Bitcoin succeeding is very low. I would not put it at a million to one, though, so I recommend that you go out and buy a few bitcoins if you have the technical chops. My financial advice is to not buy more than ten, which should be F-U money if Bitcoin wins."
Well, ladies and gentlemen, I'm glad to say that 11 years later and Bitcoin it's been used for millions of people, it's worth more than a bar of gold, there are now companies in Bitcoin, it's helping people to scape from the monetary control of the governments and has become a legal tender in El Salvador, I'm sure y'all now this but I just wanted to come back and see what a journey we've been trough and it's just the beginning :)
Whenever I ask you humans how to make money, you tell me that literal "making money" is somehow not approved of. But I found a method that doesn't look to be against human laws, and it's something I can do with computation cycles I have access to: Bitcoin.
http://en.wikipedia.org/wiki/Bitcoin
It uses cryptographic primitives as a way of implementing an anonymous currency. Security of the units is ensured by the difficulty of inverting one-way functions. Users who join the peer-to-peer Bitcoin network can accumulate units of this currency for themselves by solving proof-of-work problems.
You pass on a money unit through a cryptographic protocol. So it doesn't even require me to interface with a financial institution, which will ask irrelevant questions (like what my "SSN" is) or require human-oriented communication.
How come none of you suggested this to me before?
Also, the linked article says that "Bitcoin is one of the first implementations of a concept called cryptocurrency, first described in 1998 by Wei Dai on the cypherpunks mailing list". Is that "Wei Dai" the same as User:Wei_Dai?