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Re:Bitcoin Can Drop 50% and China Miners Will Still Make Money by bitoneill on Wednesday January 10, 2018 @07:17PM (#16120369)
"Miners break even at $6,925 at China’s top power price." It is my understanding that they don't pay top power price but rather they locate in areas where local electricity is abundant and cheap.
Re:Bitcoin Can Drop 50% and China Miners Will Still Make Money by JumpCrisscross on Wednesday January 10, 2018 @07:28PM (#16120430)
Or where they can split the gains with a corrupt official in exchange for free power...
Re:Bitcoin Can Drop 50% and China Miners Will Still Make Money by solotronics on Wednesday January 10, 2018 @08:14PM (#16120704)
the American concept of corruption is so endemic to him the Chinese system works it's not even really considered corruption there it's just how things work there. it's part of a formal business meeting to give gifts in exchange for favors
Re:Bitcoin Can Drop 50% and China Miners Will Still Make Money by JumpCrisscross on Wednesday January 10, 2018 @08:30PM (#16120782)
There is a difference between giving a gift, even a lavish gift, and trading public services directly for private gain. This isn’t an American or Chinese view. When these arrangements become public, Weibo goes wild and Beijing is incentivised to respond.
Re:Bitcoin Can Drop 50% and China Miners Will Still Make Money by coupdejarnac on Wednesday January 10, 2018 @11:49PM (#16121459)
That's a bit hyperbolic. Corruption is illegal there, too. Nobody there cares much until you step on the wrong toes, then you are in serious trouble. It's a case of rule of law vs rule by law.
Re:Bitcoin Can Drop 50% and China Miners Will Still Make Money by jsmthrowaway on Wednesday January 10, 2018 @08:17PM (#16120723)
Westerners who travel abroad on behalf of corporations are trained on this religiously. It’s considered corruption on home turf, and entertaining it can come back on a company quite hard both domestically and internationally, particularly when a government official is involved.

“But $trainer, you mean I really have to report the $80 dinner I was treated to in Shanghai?” You bet. If you operate a startup that does deals internationally and aren’t training your team from a risk management standpoint, the legal downside is huge if a government decides to look at you. Start with the Bribery Act of 2010, the FCPA, and so on.

Re:Bitcoin Can Drop 50% and China Miners Will Still Make Money by JumpCrisscross on Wednesday January 10, 2018 @08:38PM (#16120829)
Agreed. FCPA is ruthlessly enforced. And for good reason.
Re:Bitcoin Can Drop 50% and China Miners Will Still Make Money by bgee on Wednesday January 10, 2018 @07:34PM (#16120467)
> Or where they can split the gains with a corrupt official in exchange for free power...

Has this happened before? It sounds bizarre and Googling gave me nothing.

Re:Bitcoin Can Drop 50% and China Miners Will Still Make Money by robocat on Wednesday January 10, 2018 @08:37PM (#16120822)
It happens with streetlights in Belgium: https://nytimes.com/2017/12/12/world/europe/belgium-electric...

“Streetlight consumption translates into profits for electricity producers, distributors and the state, he said. The profits of electricity distribution companies are paid out ‘in dividends to the local municipalities that own shares in them, and in salaries and stipends to the local politicians who sit on their oversight boards,’ he explained.“

Re:Bitcoin Can Drop 50% and China Miners Will Still Make Money by moz23 on Wednesday January 10, 2018 @11:11PM (#16121338)
Well, there are things like the US prison system, US telecommunications, US military industry, etc., etc., that would give you lots of good results.
Re:Bitcoin Can Drop 50% and China Miners Will Still Make Money by hello_newman on Wednesday January 10, 2018 @08:05PM (#16120643)
In China, everything has a price...
Re:Bitcoin Can Drop 50% and China Miners Will Still Make Money by vm on Wednesday January 10, 2018 @08:14PM (#16120699)
Every country has corruption, both illegal and legal. https://en.wikipedia.org/wiki/Corporatocracy
Re:Bitcoin Can Drop 50% and China Miners Will Still Make Money by adventured on Wednesday January 10, 2018 @09:57PM (#16121126)
The bottom 150-160 countries in terms of corruption are extraordinarily corrupt compared to the top few dozen that are the least corrupt. The gap between New Zealand or Denmark, two of the least corrupt nations, and Croatia or Hungary, is night and day.

There is a dramatic acceleration of corruption after you get outside of that general top 30-40 group. Your statement is an equivocation, when in actuality the level of corruption often varies dramatically from nation to nation. Saying every country has corruption is meaningless as such.

https://www.transparency.org/news/feature/corruption_percept...

Re:Bitcoin Can Drop 50% and China Miners Will Still Make Money by zero_intp on Thursday January 11, 2018 @07:32AM (#16123256)
Hello poster, it would help to add to your comment. Without additional detail it seems like whataboutism.
Re:Bitcoin Can Drop 50% and China Miners Will Still Make Money by maxxxxx on Wednesday January 10, 2018 @07:47PM (#16120533)
Do they go and cash out their coins immediately? If Bitcoin ever drops, they may lose everything.
Re:Bitcoin Can Drop 50% and China Miners Will Still Make Money by FabHK on Wednesday January 10, 2018 @07:52PM (#16120565)
If I recall correctly, bitcoins from a coinbase (mining reward) transaction can only be transferred after 100 blocks confirmation (ie about 16.5 hours). I'd assume that they might keep a bit of a speculative long position, but otherwise liquidate - they have bills to pay.
Re:Bitcoin Can Drop 50% and China Miners Will Still Make Money by kompiuter on Thursday January 11, 2018 @01:22AM (#16121799)
As far as I know only 6 confirmations are required for a transaction to be considered practically irreversible. Is it different for coinbase (reward) transactions?
Re:Bitcoin Can Drop 50% and China Miners Will Still Make Money by makomk on Thursday January 11, 2018 @06:26AM (#16122964)
Yeah, it's different for coinbase transactions because those transactions and the reward from them vanishes if that block is ever reorganized out of the main chain, whereas ordinary transactions will generally be included in the new chain too. It's as much a protection against technical issues as it is malicious attacks. I think there have been a small handful of reorganisations that are larger than 6 blocks in practice, and this has generally held up well.
Re:Bitcoin Can Drop 50% and China Miners Will Still Make Money by FabHK on Thursday January 11, 2018 @01:39AM (#16121862)
That’s my understanding.
Re:Bitcoin Can Drop 50% and China Miners Will Still Make Money by tuxidomasx on Thursday January 11, 2018 @03:51AM (#16122338)
The altcoin crowd insists that people with a lot of bitcoins can and do "diversify" their cryptocurrency holdings by exchanging them for altcoins, thus making bitcoin somewhat of a "reserve" cryptocurrency.

This would also give those mining altcoins a nice market to convert their coins to btc and subsequently cash out.

I guess the question is, if bitcoin drops, will everything drop? Or will spreading your stake around the altcoin minefiled be enough to protect against huge losses?

Re:Bitcoin Can Drop 50% and China Miners Will Still Make Money by prostoalex on Wednesday January 10, 2018 @08:14PM (#16120701)
Large shops pretty much have to, either to pay for new ASICs and GPUs in fiat currency, or return capital to existing shareholders.
Re:Bitcoin Can Drop 50% and China Miners Will Still Make Money by michaelbuckbee on Wednesday January 10, 2018 @09:30PM (#16121027)
(not joking) - Do the hardware Bitcoin mining makers not accept Bitcoin?
Re:Bitcoin Can Drop 50% and China Miners Will Still Make Money by NamTaf on Wednesday January 10, 2018 @10:58PM (#16121303)
Why would they with the insane transaction fees, instability of value and slow transaction time? It’s of very limited use as a currency.

Miners and mining hardware makers don’t actually care for bitcoin from a philosophical point of view, so they have no incentive to use it as a currency. It’s literally just a means to an end for creating value to them. If they were growing tulips instead, you’d see them investing in farming techniques just as happily.

Re:Bitcoin Can Drop 50% and China Miners Will Still Make Money by jcomis on Wednesday January 10, 2018 @11:58PM (#16121490)
I think bitmain (a large asic maker) only accepts bitcoin cash for their miners, or at least their latest version.
Re:Bitcoin Can Drop 50% and China Miners Will Still Make Money by makomk on Thursday January 11, 2018 @06:34AM (#16122993)
Yeah, mainly for political reasons - they were one of the main supporters of Bitcoin Cash and it re-enabled the secret mining optimization they'd promised they weren't using, honest, which was accidentally broken by Segwit. At the time they started requiring it as the sole method of payment it was basically unusable with block times measured in hours, little in the way of exchange and other support, and I think the exchanges may still have required so many confirmations it took days to get funds onto them. They could get away with this because they had no real competitors.

There were some rather unamused comments at the time from miners who got their first experience of Bitcoin Cash by having to use it to buy from Bitmain, questioning whether it was always this terrible given that all its very vocal boosters had been claiming it was the fast option compared to Bitcoin. (The usual response was to argue that the block speed varied between a minute per block and the hour+ one and they were just unlucky - which technically it did, it's just most of the time it was in slow mode and the brief fast intervals were days apart.)

Re:Bitcoin Can Drop 50% and China Miners Will Still Make Money by ric2b on Thursday January 11, 2018 @10:18AM (#16124374)
This is correct. It's also important to note that bitmain is one of the main responsible parties for the creation of Bitcoin Cash and this move is mostly a way to boost it's value, because even though Bitcoin fees are high, they aren't that bad ($3 to $30 depending on the load) when you're selling devices for $2K+.
Re:Bitcoin Can Drop 50% and China Miners Will Still Make Money by ThrustVectoring on Wednesday January 10, 2018 @08:20PM (#16120742)
This is a good reason for these miners to short the bitcoin futures contract
Re:Bitcoin Can Drop 50% and China Miners Will Still Make Money by ikeboy on Wednesday January 10, 2018 @08:30PM (#16120785)
If price shoots up, lots of new miners join, difficulty shoots up, they can no longer produce enough bitcoin to cover their shorts, they lose a ton of money on the shorts.

Commodity futures only work when you produce a consistent amount.

Re:Bitcoin Can Drop 50% and China Miners Will Still Make Money by ThrustVectoring on Thursday January 11, 2018 @02:14PM (#16126823)
There's a worst-case for the difficulty adjustment, right? Just hedge your expected worst-case production through shorting the future, then.
Re:Bitcoin Can Drop 50% and China Miners Will Still Make Money by ikeboy on Thursday January 11, 2018 @02:21PM (#16126888)
Not really. If they release a new miner that's an order of magnitude more efficient the difficulty will shoot up as soon as enough units are online.
Re:Bitcoin Can Drop 50% and China Miners Will Still Make Money by ThrustVectoring on Thursday January 11, 2018 @02:40PM (#16127090)
Hmm. I thought I remembered reading something about two weeks, but that's the time period required without enough blocks to make difficulty fall.
Re:Bitcoin Can Drop 50% and China Miners Will Still Make Money by ikeboy on Thursday January 11, 2018 @02:49PM (#16127173)
It adjusts every 2016 blocks, but if new miners come online that could in theory be mined in a day instead of two weeks.

I haven't looked too closely at how difficulty adjusted after previous order of magnitude efficiency gains, but the risk is certainly there.

Re:Bitcoin Can Drop 50% and China Miners Will Still Make Money by solotronics on Thursday January 11, 2018 @12:30AM (#16121608)
they are cash settled Bitcoin futures not settled in BTC
Re:Bitcoin Can Drop 50% and China Miners Will Still Make Money by ikeboy on Thursday January 11, 2018 @12:39AM (#16121642)
That doesn't change the economics. Either way they have short exposure to BTC and no guarantee they will be able to produce BTC, which could hurt them if market moves against them too quickly.
Re:Bitcoin Can Drop 50% and China Miners Will Still Make Money by LifeofPi314 on Wednesday January 10, 2018 @08:28PM (#16120771)
What does break-even mean here. What time frame are you looking at?
Re:Bitcoin Can Drop 50% and China Miners Will Still Make Money by comicjk on Wednesday January 10, 2018 @10:05PM (#16121156)
I think they're talking about marginal cost of electricity only, assuming the hardware, location, and tech support costs are negligible. I'm not sure how valid that is as an analysis of total profitability. It depends how dominant the electricity costs really are.