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3321  Economy / Service Discussion / Re: butterfly labs is definitely mining with those ASICs at the moment on: September 21, 2012, 05:03:46 AM
I'm not skirting the question, I simply do not have an answer at this time.  I have *never* had a definitive answer to that, since it's not really high on the priority list of things going on around here.  We're more concerned with actually getting a finished product prepped and shipped at this point. 
Alright, thanks for the response.

....as his sig says he's mining at 480 GH/s lol.  Let me just tell everyone, if I invented a device that mines really fast, fuck y'all, I'm mining with it.  So anything short of that is quite a bit better lol.  I mean have like a room full at least.  What company doesn't use their own product?  Ford, McDonalds, Dyson, everyone!  Even investment bankers invest in their own funds.  If it works, use it.

And once again, if BFL wants to make $XXX amount of money period, then they either make 100% from your purchases of hardware or they go like 90% hardware 10% small mining operation.  Plus, if they're paying big bucks to have a Taiwanese develop custom chips to make BTC mining quicker, cheaper, easier, and better for the environment, not funding it with bitcoin mining almost seems stupid.  So like I said, if they don't buy themselves 1 rig for every rig they sell, I'm fine with most other things than that, lol.
I agree - I don't really care if BFL mines with them on main net, I just want them to be open and admit it if they are.
3322  Economy / Economics / Re: Bitcoin is a Zero-Sum Game - Long-term interest bearing instruments viable? on: September 21, 2012, 04:56:57 AM
The real question is whether THAT economy will encourage the "correct" level of investment / savings.
The correct level of investment is the level which people choose in the absence of coercion.
Yes, but a deflationary currency biases the users' choices.

Let's take it to the extreme.  Say that bitcoin deflates at a rate of 50%/year.  Now say that someone wants a loan.  Who is going to loan to them?  Anyone?  What would the interest rate of said loan be?  Why?

Similarly, say that USD inflates at a rate of 100%/year.  Now answer the same questions above.

Does that help you understand my position on this?  I completely agree, the correct level of investment is the level which people choose in the absence of coercion.  But currency inflation/deflation is also a form of coercion, in that it biases the users' decisions.
3323  Economy / Economics / Re: Bitcoin is a Zero-Sum Game - Long-term interest bearing instruments viable? on: September 20, 2012, 09:54:40 PM
The malady of investing in Bitcoin is compounded by the fact that investing lowers the price of money. If more money is available, interest rates go down (and likely exchange rates), at least in a free market that isn't dominated by a central authority's funds. I have a thread sitting in this forum with 1 anecdotal reply and zero discussion on what Austrians actually think of this situation. Apparently head-in-sand bitcoinomics is much more comforting.
Right, I agree.

I think where many people disagree is what the appropriate amount of investment is.  Obviously, investment based on inflation (at least the rate of inflation in the US) is bad, as it encourages too much debt.  When that debt-based bubble pops, it wrecks all kinds of havoc.  But I think investment based on deflation is bad as well - too few investments will be made, and not enough innovation or production to "keep up" in a global economy.  Sure, we'd still survive, but we wouldn't be as productive or innovative as we could be, and the economy would not be optimized because of it.  Lower monetary velocity and lower paychecks for, well, everyone would ultimately be the end result.

That said, I think Bitcoin (and thus, a deflationary currency) could still be the lesser of the two evils.  And since a perfectly stable currency is still impossible to create, perhaps the best solution to be found for now.
3324  Economy / Service Discussion / Re: butterfly labs is definitely mining with those ASICs at the moment on: September 20, 2012, 09:44:23 PM
1. You disagree with our non-existent policy to mine on main net with the ASICs we are not currently mining on main net with.
Josh, why do you keep skirting this question?  You know you WILL mine on the main net with the ASICs (if you weren't, you would have denied it by now).  We all know it too, which is why it is being brought up.  No one thinks you are mining on main net now with ASICs, but that's not the question that is presented.  We just want to hear you say it.

Will you be testing the ASIC miners for 24 hours each on main net?
3325  Other / Off-topic / Re: TOWN HALL (prep) Meeting: Butterfly Labs on: September 20, 2012, 07:50:38 PM
Why is allowing people to bet on the outcome of lotteries illegal?  Because the government said so?  Do you also consider it morally wrong?  Why?

I wouldn't expect such an outcry from people who are actively making use of similar illegal services (betsofbitco.in).  This is fascinating.
3326  Economy / Scam Accusations / Re: fuck on: September 20, 2012, 07:18:52 PM
Where's the picture?  I must've missed it.
3327  Economy / Economics / Re: Bitcoin is a Zero-Sum Game - Long-term interest bearing instruments viable? on: September 20, 2012, 06:59:54 PM
Why would I invest in said business with my money to make 2% per year, when I could just keep the money in my pocket and make a certain 3% per year?

Because 5% > 3%. If you are earning a sum of 2% in a currency that increases in value by 3%, you reap the benefits of both.
In a way, yes. But you're missing out on what that investment could have been making had you just held on to the money.  I'll do some maths.

I have 200 BTC to invest.  I have the option of holding on to it and gaining 3% in value each year, or the option of investing in another company and making 2% per year.

So, first year:
Holding: 200 BTC = 206 BTC (effective purchasing power compared to initial investment)
Investing: 4 BTC dividend

Second year:
Holding: 206 BTC = 212.18 BTC
Investing: 4 BTC dividend + 0.12 BTC effective purchasing power increase on prior balance + 4 BTC prior balance = 8.12 BTC

Third year:
Holding: 218.55 BTC
Investing: 4 BTC dividend + 0.24 BTC effective purchasing power increase on prior balance + 8.12 BTC prior balance = 12.36 BTC

So, you see how it never "catches up" compared to just holding the money?  Or, maybe it eventually will LONG into the future, as long as the dividends are saved and you let the purchasing power continuously compound on itself.

Now, if you don't like seeing the purchasing power increase in BTC (because your BTC balance doesn't increase, just the purchasing power of your BTC balance increases), then I'll format it differently to what would actually happen:

First year:
Holding: 200 BTC
Investing: 3.88 BTC

Second year:
Holding: 200 BTC
Investing: 3.88 BTC prior balance + 3.77 BTC new dividend = 7.65 BTC

Third year:
Holding: 200 BTC
Investing: 7.65 BTC prior balance + 3.66 BTC new dividend = 11.31 BTC

And the investment dividends would keep decreasing (the investment wouldn't make more money just because the purchasing power of the currency used increases), making it a LONG time before that 200 BTC was ever recovered.  Actually, doing a quick calculation, you'd never recover more than 133.33 BTC, making it a bad investment vs the 3%.  Which, I suppose that makes sense, given that 200 BTC * 2% / 3% = 133.33 BTC.
3328  Other / Beginners & Help / Re: Captcha is a waste of time (Sad truth) on: September 20, 2012, 06:10:23 PM
Would it not be a good idea to replace Captchas with small Bitcoin payments? Less annoying and actually gets the spammers to hand over some money. Possibly make it an alternative and see which people choose.
That would be a terrible idea, unless it's a very Bitcoin-specific site.

I was more thinking of this site. But it might work well as an either/or proposition on other sites. Of course, before long, it wouldn't be bitcoins just for registration but bitcoins for everything.

Though for some sites, that wouldn't be so bad.
It'd be bad even for this site though.  What do you think the percentage of people who come here are brand new to Bitcoin, and haven't even figured out how to buy any yet?  Even if it's a token amount, it would still keep a vast majority of the currently-registering newbies away from the forum.

Now, if that's the goal of the forum, then sure, I can understand it.  Otherwise.... no.
3329  Other / Beginners & Help / Re: Captcha is a waste of time (Sad truth) on: September 20, 2012, 03:37:15 PM
Would it not be a good idea to replace Captchas with small Bitcoin payments? Less annoying and actually gets the spammers to hand over some money. Possibly make it an alternative and see which people choose.
That would be a terrible idea, unless it's a very Bitcoin-specific site.
3330  Economy / Service Discussion / Re: BITCOIN MAGAZINE ARRIVED! on: September 20, 2012, 05:21:20 AM
Just got mine, BC Canada.

Is it just me, or are issue 2 and 3 half the size of issue 1. It feels like you split the 2nd issue in two and sold the other half as issue #3...
Well, the font is a lot smaller, so there's more content on each page.
3331  Bitcoin / Mining / Re: Why should we invest in ASIC? on: September 20, 2012, 05:14:11 AM
I still fail to understand your idea of a bail out.  What exactly happens in a bailout?  Is the mining "corporation" given money?  Are they given miners to rebuilt their hash rate?  I don't understand what a bailout is or how it would work in the Bitcoin context.

Okay, let's say there is a mining operation in China (I do not know the demographics of mining activity so bear with me its a hypothetical example).

This operation generates 25% of global BTC HR. (Fact:  BFL and ASICMINER are based in China)

The Red Party (or whoever is in charge at the time) says you have to shut this down per "blah-blah-blah".
The owner of the operation has few alternatives here. Either he moves all of his gear or complies/goes to jail.

Meanwhile, the Party has a setup ready to go to take over the network.
Assume, this '25%' has been the barrier to the entry for whatever factors at play.
The reason they initiated the shutdown of that mining operation in the first place is their need to lower it.
Of course they can take it over, etc but for the sake of illustration, we are going to say they can't. The owner is smart enough to destroy it if that happens.

Now with the bail-out, the owner of the operation can issue a plea to the community and say "I need resources to move all my gear".

There are many assumptions I am making and details I am omitting here though.

Does this now make sense?
Alright, yes, that makes sense.  If 25% of hashing power is controlled by a single entity in China, and the Red Party shuts it down, and happens to already have 75% of the hashing power necessary to stage a 51% attack, then it could be a concern, and maybe the Bitcoin community would help bail out the ultra-miner.  I will agree with you on that potential.
3332  Bitcoin / Mining / Re: Why should we invest in ASIC? on: September 19, 2012, 09:52:05 PM
All right, I am having a difficulty illustrating this.

I see the bail-out applicable in a scenario where a mining corporation that does lets say 25% of all BTC HR drops of the map because of connectivity issues.
Bail-out comes in where this mining corporation needs to move all of its resources to get the total BTS HR up to where it was.
Without it the attacker has a much lower entry barrier.

I've also edited the last post prior to you posing, sorry...
I still fail to understand your idea of a bail out.  What exactly happens in a bailout?  Is the mining "corporation" given money?  Are they given miners to rebuilt their hash rate?  I don't understand what a bailout is or how it would work in the Bitcoin context.

Yes, I agree that 25% lower hashrate would be (generally speaking) a 25% lower barrier to entry.  I guess I just don't see how an attacker could easily get that 25% lower hashrate, and whether those resources spent taking down those mining pools (or mining corporations, as you call them) might be better spent on simply adding more hashing power to their own attack.

I am not even considering a maliciuos entity developing their own ASICs (or whatever the next technology is) - this usually involves significant r&d and setup costs. The attacker would be better off simply purchasing the same technology that "good" miners are currently using - the most effective, currently available technology. The community upgrading to the next technology simply means the same technology is available to the attackers. Keep in mind that any technology cannot cost more than the expected profit from mining over some reasonable time frame (for ROI purposes.
Why are you not considering a malicious entity developing their own ASIC?  That's by far the cheaper route to do a 51% attack (currently).

A 51% attack via GPUs would require around 50,000 of them (20TH/s at 400MH/s per GPU).  Assuming you could find 50,000 video cards for sale that do 400MH/s for $200, it would cost $10M.  And that's not including the costs for the basic systems to host them (say, 5 per rig, so 10,000 rigs would need to be built), the cost to rent out a datacenter to house them, the costs to set them up and keep them running, electrical costs, etc.  I'd say you're easily looking at $15M, maybe $20M.

Now, a 51% attack via ASICs, with the attacker developing his own, would cost, say $2M in R&D, plus the costs of the chips themselves.  People here have speculated that the Jalepeno might use a single chip, and that the cost of the chip would be around $10 in bulk.  So, we'll go with that.  3.5GH/s for $10, plus, say, another $40 per chip for the board and other electronics, so $50/3.5GH/s.  To get to the requisite 20TH/s, you'd need 5,715 of these chips.  At $50 each, that'd be another $0.3M in costs.

So, you can see now why it is important we introduce ASICs into Bitcoin mining.  It is to protect against other ASICs mining.

I agree with you that changing from GPU's to ASICs does not help prevent an attack using the same devices though.

You mean if Bitcoin activity in general was blocked?

This sort of case has been discussed, but more in the context of forced governmental restrictions.  However, the data could still be encrypted to bypass such restrictions, and unless the restricting government planned to block all encrypted data, they would have no way of knowing what is Bitcoin traffic vs what is other traffic - encrypted traffic all looks very much the same.

Encrypted traffic does not all "look very much the same". Before you can encrypt, you must handshake--this is typically a dead giveaway. Even if a handshake was unnecessary, the bitcoin data stream is open to the public and can be monitored, so it would be excessively easy to find encrypted traffic matching the same patterns. The only significant way to combat this is to use steganography or excessive padding to the point where the real data may only be a small portion of the padding. And even in the latter case, it may still be obvious because there are not many protocols that do this sort of thing.

Right now, someone could develop their own ASIC and EASILY have and hold 90% of the hashrate with a small number of devices (say, 200 devices @ 1 TH/s each).  Once ASICs are in the wild, and the hashrate is pumped up to 500 TH/s (my estimate of where it will be after BFL finishes its current preorders), it would take 5,000 of those same devices @ 1TH/s each to gain the same 90% advantage over the Bitcoin network.

So yes, it would make it more difficult and expensive for an attacker to stage a disruption using ASICs.

Why would you need 5,000 TH/s to attack 500 TH/s? If anything, spending a few million to develop your own ASICs and using significantly less power and space seems a lot better than buying 50,000+ GPUs and the power and space requirements that go along with that. Bitcoin is quickly going to approach the spot where there is no profit to be had in mining which means sales of ASICs will stall, especially after the award halve. Who is going to buy specialized hardware to not see a return? GPU mining is only so popular because most everyone already has one. Once ASIC power is the norm, the network can only support so many ASICs per price of a bitcoin. Either transaction fees have to start rising significantly, or the value of BTC has to keep going up for the network to be continually better protected.

PS - The price from existing ASIC manufacturers should probably drop significantly after they recoup the startup costs.
Ok, I was unaware of the specifics of encrypted traffic.  Someone had mentioned it would be possible to continue using Bitcoin via encryption, so I was merely passing that statement along.  Apparently, that statement was wrong.

I was just using the 90% as an example.  You could change it to 50% and redo the maths if you like.  I agree that spending money on ASICs to attack the network would be much cheaper and easier than spending money on GPU's to do the same, which is why I believe it is imperative that the Bitcoin network start using ASICs.
3333  Economy / Service Discussion / Re: butterfly labs is definitely mining with those ASICs at the moment on: September 19, 2012, 09:16:00 PM
You'll have to talk to Gavin and the others than maintain test net if you want answers to that.  They have repeatedly requested that people not mine on test net because it raises the difficulty, making it impossible to test with.  If we unleashed 20 TH onto test net for even 24 hours, it would make it unusable for everyone else.  Feel free to disagree, but this has been an issue for a couple years now, please go research it.

Yes, I am going to shrug off this invalid point because we are not now and have not been testing ASICs on the live network, so it's an immaterial argument. 
But you WILL test ASICs on the live network?  Why has the information surrounding this testing only been disclosed to select persons at the Bitcoin conference?  Why will you not disclose that information to everyone else?

It's not an immaterial argument just because you haven't done it in the past, when you are obviously going to do it in the future.  And the fact that you refuse to give out the details of this to the community as a whole has me concerned now.  What can be so bad that you cannot reveal it until it happens?
3334  Other / Beginners & Help / Re: Rally today 9/19/12 on: September 19, 2012, 08:30:06 PM
I wonder what's causing the price to drive upwards.
All the pirate holders finally admitting to themselves that they aren't getting their coins back.   Cheesy
3335  Economy / Service Discussion / Re: butterfly labs is definitely mining with those ASICs at the moment on: September 19, 2012, 08:28:31 PM
All of our equipment is burn tested after final assembly/testing for ~24 hours on a live pool (In this case, EMC).  After the burn-in, it's taken off the rack, packed and shipped the same day.  We do this for both the singles and the mini rig and the singles PSU's (we've had a few of those go bad, so now we burn those in as well). 

We are not mining with any ASIC equipment at the present time.  You can be sure there would be a big announcement if we had turned up the ASICs on a live pool.



When paired with ASIC technology BFL testing practices are disturbing.

For an initial batch production and shipment of BFL SC equipment how much will the "live pool" ASIC mining affect difficulty prior to ASICs being in the wild?

Let's say a conservative estimate of 20 TH total capacity for the first batch run.  Let's say one month of production where units are coming off the line assembled and being stored for batch shipment.  Of course, not before the essential live pool testing.   Huh


Would it then be reasonable to assume that the equivalent of approx. 666 GH per day in units would be in "live pool" burn-in testing? 

Difficulty adjusted that's still well over 200 BTC, or 2500 USD, per day skimmed off the top.


You know this looks bad, right?
I have to agree that it looks bad.  At least they're being upfront about it (finally).  I still won't be cancelling my order over this though.
3336  Bitcoin / Mining / Re: Why should we invest in ASIC? on: September 19, 2012, 08:26:49 PM
You mean if Bitcoin activity in general was blocked?

Not the entire network's activity, no...

I am actually trying to consider a situation where an attacker pursues two paths simultaneously.

1) Severing mining enterprise's internet connection
2) Setting up its own mining node to take over the network

A bailout maybe need for 1 to stay ahead of how attacker execute 2.
I'm not sure what you mean by a "bailout" (and I have a great distaste for that word to begin with), and also uncertain why you think this is a thread.  The attacker could certainly work to take down as many pools as he wanted, but it wouldn't stop individuals from mining.  And people whose connection was just severed from all of the mining pools would most certainly take steps to start solo-mining instead of on a pool, partially negating the attackers efforts.

Now, if you're talking about the attacker targeting miners themselves, I don't think any one miner holds a significant percentage of overall hashing power.   Maybe the top miners of the world have 1 TH/s or thereabouts.  Certainly, an attacker could work to take those top miners down, but it wouldn't make a large difference in the overall network hashrate - they'd still have to have quite the node themselves to actually exceed the total network hashrate.
3337  Bitcoin / Mining / Re: Why should we invest in ASIC? on: September 19, 2012, 08:15:05 PM
All the stories about making the network more secure are either naive or dishonest.

Maybe, but without a resilient and secure network, bitcoins are pointless.
Try reading my post again. Higher hash rate does not make the network more resilient or secure against the 51% disruption.
Yes it does.  It makes it more difficult and expensive for an attacker to stage an attack.

How exactly does upgrade by the community to a faster hashing hardware make it more difficult for someone to start hashing with that same faster hardware?

Please elaborate how it is more difficult to stage a 51% disruption in the ASIC ecosystem compared to a GPU ecosystem compared to a CPU ecosystem.
Right now, someone could develop their own ASIC and EASILY have and hold 90% of the hashrate with a small number of devices (say, 200 devices @ 1 TH/s each).  Once ASICs are in the wild, and the hashrate is pumped up to 500 TH/s (my estimate of where it will be after BFL finishes its current preorders), it would take 5,000 of those same devices @ 1TH/s each to gain the same 90% advantage over the Bitcoin network.

So yes, it would make it more difficult and expensive for an attacker to stage a disruption using ASICs.
3338  Bitcoin / Mining / Re: Why should we invest in ASIC? on: September 19, 2012, 08:05:16 PM
So?  The miners can still move to a different mining pool that is unaffected.  And many of the larger pools have quite the DDOS protection, due to attackers DDOSing them and asking for money in exchange.

Okay, that is covered. However, I was thinking about ISP policies and perhaps all the way down to the fiber itself.

I am satisfied with your answer to the main question though. Smiley Thanks!
You mean if Bitcoin activity in general was blocked?

This sort of case has been discussed, but more in the context of forced governmental restrictions.  However, the data could still be encrypted to bypass such restrictions, and unless the restricting government planned to block all encrypted data, they would have no way of knowing what is Bitcoin traffic vs what is other traffic - encrypted traffic all looks very much the same.
3339  Bitcoin / Mining / Re: Why should we invest in ASIC? on: September 19, 2012, 07:50:59 PM
All the stories about making the network more secure are either naive or dishonest.

Maybe, but without a resilient and secure network, bitcoins are pointless.
Try reading my post again. Higher hash rate does not make the network more resilient or secure against the 51% disruption.
Yes it does.  It makes it more difficult and expensive for an attacker to stage an attack.
3340  Bitcoin / Mining / Re: Why should we invest in ASIC? on: September 19, 2012, 07:50:13 PM
I suspect the only reason is a self-centered race for quick profit. All the stories about making the network more secure are either naive or dishonest. A malicious entity willing to spend resources to temporarily disrupt the network could do so today with GPUs or FPGAs, or next year with ASICs. At any point of time it can be done with whatever technology is in use by the miners.
Everybody is racing for a piece of the same, predetermined block reward and for the fees. Nowadays the fees are negligible compared to the block reward, therefore nowadays the total value of mining economy is limited. Anyone willing to spend (waste, more precisely) more than 7200 coins per day (plus the electricity overhead) would become the majority vote.

I don't worry about this, but won't discuss the reasons here.
You're forgetting about the capital costs upfront.  If ASICs are used, then the malicious entity must first spend the capital on developing an ASIC (or somehow purchase as much as the rest of the Bitcoin network combined without being noticed), and have a place to put them all (perhaps a small portion of a datacenter).

If GPU's are used, then the malicious entity must build or rent out a data center to put them all.  The current network hashing power of about 20 TH/s would require around 50,000 video cards to even equal it.  Those 50,000 video cards would draw around 200 watts each, requiring 10 megawatts of power.

Now, I'm not saying it's impossible for someone with lots of money to do this, just that the costs would far exceed the ASIC electric cost equivalent of 7200 BTC/day.

On top of that, as soon as members of the pool knew it was compromised, they'd simply switch to a different pool, leaving the attacker without the hashing power he needs to continue carrying out the attack.

Okay, consider the compromise affects the internet connection of the mining enterprise.
So?  The miners can still move to a different mining pool that is unaffected.  And many of the larger pools have quite the DDOS protection, due to attackers DDOSing them and asking for money in exchange.
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