In reality, since there are billions of people, even B won't buy equivalent worth of products from A, A might still be able to sell something to C, so the reduction in consumption from B will not be felt directly. But anyway, increased spending from C will require increased sale from C, thus B has to buy something from C to keep the whole system in balance

Besides, both A and B usually have high incentive to hold a little extra money, because they regard money as "wealth", they even want to give this "wealth" to their children and grandchildren...

Therefore, money supply does not only need to fulfill the requirement for transaction, it also need to fulfill the requirement for saving, that's the reason in a financial crisis, the money supply must increase dramatically, since lot's of people's behavior changed, they started to save more and spend less

Fiat money is a legal tender, it means no one can refuse the payment with fiat money. BTC do not act as a legal tender, but that does not stop others from accepting BTC as a payment method. It will be only popular in the net-generation

Soros recently said, those European Banks want to slave Greece

It seems those countries in warmer climate tends to get a deficit and those countries in colder climate tends to get a surplus, due to the weather: Warmer weather tends to encourage outdoor activities and spending, colder weather tends to encourage working (in house)

I have never upgraded SDK, always used original 2.4 from LinuxCoin final, but still have problem with every newly compiled cgminer (those compiled one month ago still works fine)

This is what I experienced during the weekend:

I received a 5970 and replaced one of my 5870 with it, after graphic card change, the previous LinuxCoin installation cannot start correctly

So, I took another USB stick, installed freshly a new LinuxCoin on it, boot it into LinuxCoin, run phoenix miner, and all 5 GPU gave decent hash rates stable for 6 hours

Then, I downloaded cgminer 2.2.4, updated and installed other dependency packages, then compiled and started it, after 1 minute, it claimed 2 of 5 GPUs dead and rest of GPUs' hash rate dropped 20%

I downloaded cgminer 2.1.2 (which worked flawlessly on the original USB stick), compiled and started (after removing the .bin file from home directory), same problem

Then, I rebooted the machine, fall back to my original phoenix miner method, surprisingly found out that even phoenix only worked on one of the GPU and hang on rest of them

There is one thing I remember: Last time when I tried to compile cgminer 2.1.2, I tried to install libcurl4-openssl-dev and  libncurses5-dev but one of them just can not be found, so eventually I installed something else to bypass the dependency check. But this time, it went all smooth. I think one or both of the packages have changed since one month ago and caused these new issues

Finally I have to switch back to the previous working HW/SW configuration, hoping that I could just fix the xorg.conf to get new graphic card recognized

It's amazing that you get the idea right away, now if you just tweak this simplified model a bit to be closer to reality:

Although the amount of resources are unchanged, but the technology advanced and A and B accumulated experience, their productivity increased by 10 shells a year, thus the money supply should also increase by 10 shells per year, otherwise their increased productivity will be blocked by fixed money supply. In such case, that 100 shells loan will provide them with enough liquidity: They borrow 100 shells, but maybe only spend 10 shells in new products/services

On an island with only 2 people, maybe it is very easy to feel the increased money supply and adjust the price for products immediately (inflation), but in a society with hundreds of millions of people, the increased money supply will be not felt directly

There is another possibility that both A and B might have already reached a wealthy status thus any extra money won't stimulate significant amount of increase in production and consumption, that is a common problem in developed countries

It's a good question, but the answer is complex at macro level. I have not worked out all the scenarios, anyway here is a simplified example:

In an island with only 2 people, A and B yearly production and consumption is 50 shells worth of goods and services. And one day, they both get approved a one year loan of 100 shells (0 interest), then natually A and B would worry about if they could spend and repay those loans in one year, because that loan is 2 times bigger than their annual sale

But soon, they both find out the other guy now have many shells to spend, then they will produce new type of products and services to earn other's shells, those new products/services will come at a higher price than they previously did. At the end of the year, they both earned 100 shells extra and returned them to the bank. During this year, their production and consumption both increased a lot

Of course this is a simplified case, in the real world, they are most likely to spend less than they borrowed, but the important thing is: if only A get loan, B get nothing, then A won't be able to make any money at all since B do not have extra money to spend

Ironically, I found out the reason that causes crash is that my auto-restart script tried to launch aticonfig command on sick cores thus hang up the whole X, now I have switched to other auto-restart method which do not involve aticonfig command

2.2.3 had strange behavior on my fixed-fan-rate rig, 10% lower hash rate on 5870s and crash on 5970

X crashed due to some hard hang in one of the GPUs, but I can still ssh into the machine and manually restart it.

Is there anyway to auto-restart the machine when this happens?

All aticonfig based detect method won't work, since aticonfig will just hang there and never return anything after X crashed

Checking process method also has trouble, since the mining process is still left intact (just became zombie)

Good idea, just that 100W light bulb sounds very luxury, I'm sure that I can use the heat from the GPU instead, but a usb powered intake that opens and closes matched to case temperature is out of my reach now 

My open frame rig running on balcony have a transparent foil cover the front/side/top of the frame, I think the actual temp inside is still above 0 degree even the outside temp is -20C, I still need to set the fan speed above 30% to keep the GPU temp less than 60C, which is my normal target temp area. As long as the machine is warmer than environment, there is no risk for condense

But when the machine hangs for a couple of hours (due to too high overclock, unstable gpu etc...), the extreme low temp will hurt the fan bearing, those fans have become so noisy recently that I plan to take them apart to re-oil

only apply to certain people I guess

I used to use game modifier to change my wallet ballance to 1 billion and play the rest of the game with limitless money, then it is not more interesting make higher score or make more money in the game, I can enjoy the other aspect of the game

At enterprise level, the risk model of interest works, but at sovereign level, it's different. A sovereign country can always produce a little extra money to pay back the interest of its debt, or refinancing, thus buying time to improve the economy situation

But Greece and other EU troubled countries are different, after they joined EMU, they have lost the ability to print their own money, thus totally dependent on ECB to produce money. But ECB might not have enough motivation to produce money due to pressures from other countries like German and France

All the children owe their parents a lot and their parents seldom want it paid back. So, debt not being paid back is a norm in everyday life, but the real problem is that not everyone have access to easy loans when they are in trouble

Money flow can be simplified like this: I borrow 1 million from bank, buy 1million worth of services from you; you borrow 1 million, buy 1 million worth of services from me, and we both return our 1 million sale at the end of the cycle to write off our debt

However, if we have to return more than 1 million (banks want interest), and even have some earning for ourselves, then there must be new loans enter the system to let us make more money than we initially borrowed

The concept of profit from macro point of view: If money supply stay the same, then if some one make some profit, some one else must made a loss. If everyone is making some profit, then money supply must have increased

There could be hot money in the market and they could not find a suitable investment target, but that does not necessarily cause inflation. FED's balance sheet has quadrupled since financial crisis and we barely see some sign of inflation

Reason found: It's one of that 5970's core dead, now I completely disabled that core in cgminer, then the mining rig keeps running as usual

Actually I also experienced once crash in one of my most stable 5870s, I guess there is a limit how many hours you could run them at 99%, should be much less than factory specs

CPU running on stock cooler without heatpipe

I think maybe it has something to do with that 5970 card, since it has been working badly after I purchased it(second hand), it always crashed if I raise it above 750Mhz and recently I could only get a stable run at 710Mhz or lower. If there is a way to raise the voltage, maybe I can get a more stable result, but it seems cgminer can not push it over the BIOS limit

If that's the case, I'm relaxed   just put the a box on it will bring the case temperature back...

Anyway, the sensor still shows 50 C degree for each GPU when in mining, I doubt that maybe some of the other components in the power supply module could not provide enough voltage due to low temperature

Is there anyone experienced hardware crash due to very low temperature?

I used to put my machine on balcony and after the air temperature has dropped below 0 degree, I had encounted frequently error in one of the cards (5970). Yesterday temperature hit -18c  degree and no matter how much I lower GPU frequency (600 Mhz currently), it will still crash after start cgminer for about 5 minutes

Or, it is just my 5970 runs out of juice?

IMO, BTC's bright future is in pension fund: The price will increase overtime and have high liquidity, one can save in BTC and when he/she retired, he will have a fortune to spend