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741  Economy / Speculation / Re: A little lesson leared the hard way - Margin Call on: September 13, 2011, 12:06:34 AM
I will tell you a little story from yesterday:

I opened a Bitcoinica account and played with it. Then, suddenly a big spike to 7 occured. My immediate thought: a very good opportunity to attempt a short sale, because 7 is at the moment not sustainable.
so i attempted to sell bitcoins @ 7. this is what happened: ( you have to read it from bottim to top)

BTCUSD   Market   175.0   -   Forced liquidation @ 7.4300559927762   Sep 11 04:17 PM   
BTCUSD   Market   -50.0   -   Executed @ 6.9769   Sep 11 04:16 PM   
BTCUSD   Market   -50.0   -   Executed @ 5.9849   Sep 11 04:09 PM   
BTCUSD   Limit   -25.0   $5.6900   Executed @ 5.9846   Sep 11 03:59 PM   
BTCUSD   Limit   -50.0   $5.6900   Executed @ 5.9846   Sep 11 03:59


The first mistake was i assumed i could actually sell at 7. But the spread was over 1 dollar, so i shortsold at 6.

yes, i was the sucker to buy coins at 7.4.

the second mistake: had i provided enough liquidity i could have made a nice profit by now. but i underestimated the 1:5 margin.

I don't understand anything about short selling, but I am interested in it. Could you explain what happened with a little more detail? I don't understand the table...
742  Economy / Marketplace / Re: Win 0.5 BTC in this higher/lower game on: September 12, 2011, 11:54:49 PM
Well... You should provide the hash of that number + timestamp so that we know that you aren't making the number up Tongue You reveal the hashed string at the end so that we can confirm if your answers were correct. (also, this doesn't count as my post because I didn't make a guess)
743  Other / Beginners & Help / Re: I pay .04 BTC for joining CampBX exchange on: September 12, 2011, 09:47:54 PM
So you need to pay your users to use your site? What is your daily volume?

It's not his site and he is not affiliated with them in any way. You can see volume here: http://bitcoincharts.com/markets/cbxUSD.html
744  Other / Beginners & Help / Re: Buying 20 bitcoins on: September 12, 2011, 09:46:35 PM
Man, if you are paying $10 a bitcoin, just sign up to google checkout and use that link I gave you. It's instantaneous, it's only $8.5 and you don't have to trust a new user... Here is the original thread

PS: No, I do not earn anything from this. I just think that Google Checkout might be the solution for getting bitcoins instantaneously and most people don't know about it.
745  Other / Beginners & Help / Re: Buying 20 bitcoins on: September 12, 2011, 09:20:13 PM
You probably won't have luck here...

Try this: http://www.btcnow.net/
746  Bitcoin / Bitcoin Discussion / Re: Bitcoinica - 15169.57 BTC Traded in the last 24 hours on: September 12, 2011, 07:30:56 PM
I'll be watching this, I really want there to be a good alternative to MTGox

Bitcoinica uses MtGox. They are not an exchange.
747  Other / Beginners & Help / Re: Everyone should form a team and invest and profit together! on: September 12, 2011, 04:56:47 PM
Mining in a "collective" as the OP suggests would, at best, yield a few percent more profit compared to mining in a standard pool. Since pooled mining produces only modest returns at best, there is no way anyone is going to get rich by following the OP's suggestion. My guess is that the OP doesn't really understand the economics of mining, and hasn't done realistic calculations. Basically the OP has just made an off the cuff remark that has no basis in reality.
+1

All you would get extra are the block fees, which are next to nothing (circa 0.01%). Even if you were pushing double to triple digit Ghash/second they are still relatively nothing (at the moment) In a few dozen years the fees MAY be more than the block generation value.
e.g.
Generation: 50 + 0.0178 total fees
Generation: 50 + 0.0015 total fees
Generation: 50 + 0.0235 total fees
Generation: 50 + 0.0045 total fees

That really depends on the pool; Eligius pays everything. Maybe OP doesn't know about pooled mining?
748  Other / Beginners & Help / Re: HOW MUCH BTC IS POSSIBLE TO MAKE per 24 H using 4x HD 6990 ? on: September 12, 2011, 03:32:21 PM
Around 0.8 BTC/day
749  Other / Beginners & Help / Re: Everyone should form a team and invest and profit together! on: September 12, 2011, 03:18:26 PM
As i am doing with friends, if 10-20 people invested 5k each, paying for the mining rig, you would all break even in 3-4 months and all the monies after would be profit...

so why are we not working as a collective??

lets all get rich!!

Can you provide specific calculations for this? What cards are being used, hashrate, power consumption, etc.
750  Other / Beginners & Help / Re: Bitcoin Exchange Differences on: September 12, 2011, 03:15:27 PM
CampBX has a better API than everyone else in my opinion. Exchangebitcoins.com is also very popular.

Bitmarket does not accept Paypal anymore.
751  Economy / Trading Discussion / Re: what did i miss? on: September 12, 2011, 01:52:20 AM
There were a few problems, such as MyBitcoin going down and bitomat losing its users coins, but I believe they are not directly related to the price fall. My best answer to you question is that there are simply more people selling than buying.
752  Economy / Service Announcements / Re: [ANN] bitaddress.org Safe JavaScript Bitcoin address/private key [BOUNTY 0.1BTC] on: September 12, 2011, 01:25:37 AM
Bookmarked it. Thank you very much Smiley I claimed the bounty, but I will offer half of it (0.05) here:

Quote
Bitcoin Address:
1DcTht9y5VhSCGMe7XmbTZBGHM79oAGVjm
Private Key Hex:
1F386E4824A902731159EC25CB5EEFE3DBD83601CCA6A3C40E7565679D134C7A
Private Key Base64:
HzhuSCSpAnMRWewly17v49vYNgHMpqPEDnVlZ50TTHo=
753  Other / Beginners & Help / Re: A few newbie questions on: September 11, 2011, 09:57:46 PM
1. No one really knows. Depends on a lot of stuff
2. It obviously depends on the costs/type of original investment... Tongue Some investments may never break even.
3. CPUs are irrelevant right now. Don't bother with them. Use only GPUs
4. Yes. Just transfer the coins to MtGox/TradeHill/CampBX and sell them.
5. Data directory: https://en.bitcoin.it/wiki/Data_directory
6. $1000000000.. Wait, no, I meant $0.01... No, that's not it. Maybe $10? $60? $0.97? $523?
754  Bitcoin / Bitcoin Discussion / Re: Time for something better than MtGox? on: September 11, 2011, 09:49:57 PM
I use the alternatives because I want to promote competition. I don't like monopolies.
755  Other / Beginners & Help / Re: 10 Rigs on: September 09, 2011, 06:42:42 PM
If electricity is excluded from my costs, as it is a sunk costs, will it be a Sure-Earn if I setup rigs?

No. There are a number of things that can happen, depending on the size of your investment. I would say that if you need more than than ~6 months to get your investment back, it probably is not a good idea. There two important things that may happen:

- Bitcoin price sinks because bitcoin is outlawd, becomes unpopular, fails somehow, etc. - this is uncertain. No one knows what is going to happen. Prices could also skyrocket tomorrow for all we know...
- Difficuly rises a lot because newer GPUs came out or because some new FPGA/ASIC board shows up - this is very likely to happen.

These factors will reduce your earnings and extend your "cover the initial costs" period for years.
756  Bitcoin / Bitcoin Discussion / Re: Buy bitcoins using Google Checkout - btcnow.net on: September 09, 2011, 04:06:34 PM
Apparently  a Google Employee confirmed that they allow selling virtual currencies via google checkout: http://www.google.com/support/forum/p/checkout-merchants/thread?tid=3dd3aaeb58f9fd94&hl=en
757  Other / Beginners & Help / Re: Mining Bitcoins on: September 09, 2011, 02:47:20 PM
And here: https://bitcointalk.org/index.php?topic=9430.0

wisdomtool, you should be pool mining... What is your combined hashrate?
758  Bitcoin / Pools / Re: GuildMiners - you make MORE than 100% of your mining! on: September 09, 2011, 01:41:07 PM
Why aren't YOU helping?  lol  Would it help if we lowered the fee to 0% until official launch?  I have no problem doing that.

I don't mine  Cool I don't have hardware good enough for mining and I am not investing in that right now. Just browsing through the forum...
759  Bitcoin / Bitcoin Discussion / Re: We need tools for merchants who never want to possess bitcoins on: September 09, 2011, 07:24:00 AM
Hmm, yes.  Bit-pay it is.  I'm not sure how they can do it though, since they aren't an exchange and thus would have to pay exchange fees.  Perhaps they have a special rate, or perhaps they are owned by an exchange.

You pay 3% fee to use their service if you want to receive USDs without caring about currency exchange rates and market fluctuation.
760  Bitcoin / Pools / Re: GuildMiners - you make MORE than 100% of your mining! on: September 09, 2011, 04:02:17 AM
Right now your biggest problem is attracting users to earn hashrate. At 600 MHash it will take you months to get a block. You need a few GHashes to get started.

I like the idea of having an optional simple client for new users. The referrals don't bother me that much. Everyone is doing it anyway...
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