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Topic: Gold collapsing. Bitcoin UP. - page 38. (Read 2032247 times)

legendary
Activity: 2492
Merit: 1473
LEALANA Bitcoin Grim Reaper
August 14, 2015, 02:23:58 AM
As sickpig suggested, it would be a recognition that the block size limit is not part of the consensus layer, but rather part of the transport layer.

i never did quite get this part.  can you explain?

Sure.  

Why do we have a consensus layer in the first place?  It is a way for us to agree on what transactions are valid and what transactions are invalid.  For example, we all agree that Alice shouldn't be able to move Bob's coins without a valid signature, and that Bob shouldn't be able to create coins out of thin air.  The consensus layer is about obvious stuff like that.  In order for Bitcoin to function as sound money, we need to agree on "black-or-white" rules like this that define which transactions are valid and which are invalid.

Notice that the paragraph above discusses valid and invalid transactions.  No where did I say anything about blocks.  That's because we only really care about transactions in the first place!  In fact, how can a block be invalid just because it includes one too many valid transactions?  

Satoshi added the 1 MB limit as an anti-spam measure to deal with certain limitations of Bitcoin's transport layer--not as a new rule for what constitutes a valid transaction.  We should thus think of every block that is exclusively composed of valid transactions as itself valid.  The size of the block alone should not make it invalid.  Instead, if a block is too big, think of it as likely to be orphaned (a "gray" rule) rather than as invalid (a black-or-white rule).  Perhaps above a certain block size, we're even 100% sure that a block will be orphaned; still we should view it as a valid block!  It will be orphaned because the transport layer was insufficient to transport it across the network--not because there was anything invalid about it.

This ^

Most supporters of not changing the block size max limit (or even having one) forget that Satoshi originally put in that 1 MB limit as simply that: an anti-spam measure.

So doesn't that mean it would eventually be removed?

It seems like most people who support not changing the 1 MB limit are forgetting this very important fact.

Drama is only going to get worse within the community as long as there is discord between opinions on such a simple topic as "max block size cap".

Bitcoin (and its community) does not cease to amaze me how much drama ensues as Gavin has stated in the past.

If the drama means a lower BITCOIN price then great I can back the truck up and buy more.
full member
Activity: 280
Merit: 100
August 14, 2015, 02:05:09 AM
whoa.  look at that 7% drop in crude oil that just occurred.  someone wants out:



that looks terrifying to me
newbie
Activity: 7
Merit: 0
August 14, 2015, 12:08:54 AM
I'm actually quite excited about this idea.  It has a sort of inevitable feel to it.

Yes. Since anyone can run any software they want to interact with the Bitcoin network, this idea does seem like a logical development.

It also seems like one of those counter-intuitive anti-fragility things, where the seeming chaos and instability at a micro level will actually lead to a more predictable and stable behaviour at the macro level.

If it became more common for individual nodes to be able to tweak consensus parameters, then I think that would actually lead to more predictable and stable consensus behaviour in the long run. The worst thing that can happen to a node operator is to fall out of consensus with the rest of the network, so individual node operators would be strongly incentivised to develop methods to ensure they can track the status of the network, and deal with any potential consensus forks.

As it stands now, consensus behaviour is based on the specific implementation details of Bitcoin Core. The software is not designed with the assumption that hard consensus forks are a likely event, and when they do happen nodes are not designed to handle it gracefully. The accidental hard form of March 2013 happened because of an obscure implementation detail in the Core software, and was only possible because the software monoculture created a "single point of failure". A more diverse implementation of consensus rules might result in more frequent consensus divergences and orphaned blocks, but each one would be non-catastrophic, and would lead toward a more stable and resilient network in the long run.
legendary
Activity: 1764
Merit: 1002
August 14, 2015, 12:02:02 AM
whoa.  look at that 7% drop in crude oil that just occurred.  someone wants out:

legendary
Activity: 1764
Merit: 1002
August 13, 2015, 11:44:35 PM
here's further evidence the Reddit mods are steering the blocksize debate. they're letting this guy spam attack me with false allegations despite me reporting him.  same post about a dozen times:

https://www.reddit.com/r/Bitcoin/comments/3gutfp/if_youre_not_running_a_node_youre_not_really/cu1x6fl


Yesterday you were complaining about mod "censorship" and today you are demanding the same mods censor posts you don't like.

it's a repetitive spam attack; over a dozen times the exact same slanderous post attempt at character assassination.  have you forgotten the case seems to be going nowhere and that i deny the allegations?

everybody gets it already. i am a BitcoinXT proponent and i am a threat to you Cripplecoiners.  the HF dispute has nothing to do with it as much as you'd like to tie the two together.

but of course, i wouldn't expect you to see the difference.

My comment does not mention, or even allude to, the content of the posts.  As such, you are the only one who mentioned HF and XT.

The difference, as I see it, is that you cry censorship when off-topic posts you like are moderated, but turn on a dime to complain about lack of moderation when the posts in question do not suit you.

Make your own damn subreddit about FrappuccinoCoin if you don't like the BTC mods' "epitome of authoritarianism."  They are not your servants, and it's hilarious to watch your hypocrisy in action.

yep, didn't think you'd be able to see the difference.

one being outright censorship that attempts to suppress discussion of the most important debate in the community today about Bitcoins future direction, ie the XT fork, and the other a nobody cares spammy personal slander attack that only started when i began speaking out in favor of bigger blocks.  not to mention by a coward who hides behind an anonymous identity.
legendary
Activity: 2156
Merit: 1072
Crypto is the separation of Power and State.
August 13, 2015, 11:18:26 PM
here's further evidence the Reddit mods are steering the blocksize debate. they're letting this guy spam attack me with false allegations despite me reporting him.  same post about a dozen times:

https://www.reddit.com/r/Bitcoin/comments/3gutfp/if_youre_not_running_a_node_youre_not_really/cu1x6fl


Yesterday you were complaining about mod "censorship" and today you are demanding the same mods censor posts you don't like.

it's a repetitive spam attack; over a dozen times the exact same slanderous post attempt at character assassination.  have you forgotten the case seems to be going nowhere and that i deny the allegations?

everybody gets it already. i am a BitcoinXT proponent and i am a threat to you Cripplecoiners.  the HF dispute has nothing to do with it as much as you'd like to tie the two together.

but of course, i wouldn't expect you to see the difference.

My comment does not mention, or even allude to, the content of the posts.  As such, you are the only one who mentioned HF and XT.

The difference, as I see it, is that you cry censorship when off-topic posts you like are moderated, but turn on a dime to complain about lack of moderation when the posts in question do not suit you.

Make your own damn subreddit about FrappuccinoCoin if you don't like the BTC mods' "epitome of authoritarianism."  They are not your servants, and it's hilarious to watch your hypocrisy in action.
legendary
Activity: 1764
Merit: 1002
August 13, 2015, 10:42:07 PM
here's further evidence the Reddit mods are steering the blocksize debate. they're letting this guy spam attack me with false allegations despite me reporting him.  same post about a dozen times:

https://www.reddit.com/r/Bitcoin/comments/3gutfp/if_youre_not_running_a_node_youre_not_really/cu1x6fl


Yesterday you were complaining about mod "censorship" and today you are demanding the same mods censor posts you don't like.

it's a repetitive spam attack; over a dozen times the exact same slanderous post attempt at character assassination.  have you forgotten the case seems to be going nowhere and that i deny the allegations?

everybody gets it already. i am a BitcoinXT proponent and i am a threat to you Cripplecoiners.  the HF dispute has nothing to do with it as much as you'd like to tie the two together.

but of course, i wouldn't expect you to see the difference.
legendary
Activity: 1078
Merit: 1006
100 satoshis -> ISO code
August 13, 2015, 10:33:57 PM
That is because bitcoins are a unique collectible unlike anything the world has seen since gold. Unfortunately much like gold some characteristics limit its direct use as a mean of exchange. Gold's shortcoming is in its physicality, Bitcoin's own is the decentralization tradeoff.


I think Bitcoins are absolutely a unique collectible. I hate to "call up" authority but its own creator was well aware of that:

Quote
Maybe it could get an initial value circularly as you’ve suggested, by people foreseeing its potential usefulness for exchange. (I would definitely want some) Maybe collectors, any random reason could spark it. - Satoshi Nakamoto

Quote
It might make sense just to get some in case it catches on. If enough people think the same way, that becomes a self fulfilling prophecy. -Satoshi Nakamoto

Quote
Aug. 27, 2010: Bitcoins have no dividend or potential future dividend, therefore not like a stock. (They’re) more like a collectible or commodity. - Satoshi Nakamoto

Satoshi quotes which are correct, but also relate to when BTC was the only cryptocurrency.
Today http://coinmarketcap.com has about 600 listed, including - if I choose one at random - Monero.

So, is a monero a unique collectible unlike anything the world has seen since gold? Yes or No!
legendary
Activity: 1162
Merit: 1007
August 13, 2015, 10:28:07 PM
So if there is a blocksize based fork, and the largeblock branch can hold the lead for a few hours, the branch based on smallblocks will disappear quickly. There will probably not be time to establish the infrastructure to allow trading between them, and no time to create confusion whether a specific payment is valid or not.

If the largeblock branch can not hold for a few hours, it will disappear, it will act like a failed attempt at changing the blocksize. A new largeblock can then be attempted later, when a miner is sufficiently certain that it will succeed.

tl;dr A fork based on a largeblock is totally not destructive.

Yes!
legendary
Activity: 1078
Merit: 1006
100 satoshis -> ISO code
August 13, 2015, 10:18:53 PM
So the issue I see with BIP100 is if the majority of Miners collude to form a cartel to set the limit they can set it too low to suite the cartel's preferences, the difference between BIP 100 and BIP 101 to me, is that BIP100 miners cant leave the carrell and mine bigger blocks if there is a market for it, in the case with BIP100 the cartel needs to vote.

Whereas with BIP101 Miners can form a cartel but if it becomes more profitable to mine larger blocks they can break from the cartel without having to get a majority vote.

the innate incentive that limits the ability for cartels to form is important, BIP 100 is a change to an innate incentive in Bitcoin.  

Playing devils advocate here and creating a worse case scenario, imagine the optimal market equilibrium for block size and transaction cost resulted in the demand for a 16MB block, a majority of miners could form a voting cartel, and set a limit at 8MB, there would be no reason to do this in a free market because they would loose revenue, but in a controlled market for transaction fees where Sidechains exist, it becomes possible to manipulate the block size to undermine competition, a simple way to do it would be to limit your completion's revenue by limiting block size, if you were uncompetitive in block propagation that would give you an unfair advantage. In the case with SideChains the cartel could supplement revenue by being paid to Merge Mining side-chains that other miners dont have assess too.

giving the power to set block size to the miners by vote of the majority seems to me will ultimately tend towards centralization, where in BIP101 this power is vested in the market and incentives that govern it. More important, it's not a change to Satosis design which seems to have the incentive balance just right.  

I agree that there is more risk inherent in BIP 100 than 101 and 101 has simplicity in line with Satoshi's original vision.
There is a risk that miners might vote for a lower block limit than the ecosystem needs and cripple volumes. Although I think that incentives will prevent it, in the same way that the 3 different pools which got 50% of the network hashing power continued to behave. Miners don't want to cripple the ecosystem as it will tank the price, and they do want to handle more tx as it means more fees, which will be really important after the reward halves next year.

If miners made a small block limit to force volume onto a SC which is merge-mined by them it would be obvious to the community who can then boycott's the rogue SC's merchant services, and use a different SC. Also, this type of event should be seen a mile off and a new BIP raised to modify the voting, or just go with 101 instead.

At present I think either BIP is a vast improvement over the existing situation.
legendary
Activity: 1512
Merit: 1005
August 13, 2015, 10:08:35 PM
I think the answer is much simpler than this.

Which network will be easier and less expensive  to plug up with a spam attack for a prolonged period of time?

If that was a comment directed towards me - I don't understand.
legendary
Activity: 1764
Merit: 1002
August 13, 2015, 10:05:14 PM
I think the answer is much simpler than this.

Which network will be easier and less expensive  to plug up with a spam attack for a prolonged period of time?
legendary
Activity: 1512
Merit: 1005
August 13, 2015, 09:55:11 PM
So if there is a blocksize based fork, and the largeblock branch can hold the lead for a few hours, the branch based on smallblocks will disappear quickly. There will probably not be time to establish the infrastructure to allow trading between them, and no time to create confusion whether a specific payment is valid or not.

If the largeblock branch can not hold for a few hours, it will disappear, it will act like a failed attempt at changing the blocksize. A new largeblock can then be attempted later, when a miner is sufficiently certain that it will succeed.

tl;dr A fork based on a largeblock is totally not destructive.

legendary
Activity: 1512
Merit: 1005
August 13, 2015, 09:45:07 PM
I don't know if this is a problem for anyone, but anyway...

A fork in the software, as in bitcoin XT, is much welcome, as is alternative implementations of the basic libraries that are used. The more diverse the software, the more antifragile is the system.

A fork of the blockchain is different. Obviously, we do not want a fork to parallell the original for ever, that would create confusion for users and stir up some turbulence. On the other hand, we want forking the chain to be possible, and in fact it is necessary for the basic function that there is no single point deciding what is the right branch, it is based partly on randomness. It is also necessary to create and maintain the consensus on what bitcoin is. To the dangers: If the rules of one branch is distinctly different, we will have two coins. That would be almost the same as creating an altcoin. Note that the definition of altcoin is based only on the fact that bitcoin was first, otherwise there is no fundamental difference and you could also call bitcoin itself an altcoin, as in bitcoin comprises all coins based on blockchains. So the branch can live its own life.

When the branch is almost, but not quite, the same as the original, then what? The answer is that the two branches can not go on for long, one is bound to win. It is like turning a pendulum upside down, the situation is not stable. The reason is that liquidity is essential to money, money that has lower liquidity compared to a money type with essentially the same properties but higher liquidity, will lose. And the level of liquidity is decided by the number of users. Therefore, a blocksize based fork, if there is a chain fork at all, will be short lived. Meaning hours.

legendary
Activity: 2156
Merit: 1072
Crypto is the separation of Power and State.
August 13, 2015, 05:18:32 PM
here's further evidence the Reddit mods are steering the blocksize debate. they're letting this guy spam attack me with false allegations despite me reporting him.  same post about a dozen times:

https://www.reddit.com/r/Bitcoin/comments/3gutfp/if_youre_not_running_a_node_youre_not_really/cu1x6fl


Yesterday you were complaining about mod "censorship" and today you are demanding the same mods censor posts you don't like.
legendary
Activity: 1904
Merit: 1002
August 13, 2015, 04:55:00 PM
What about lying? If enough miners claim to support larger blocks but actually don't, then part of the network will waste time producing blocks that won't be built on.  IMO, if we want to put the power directly in miners hands it would be better to raise the limit entirely.  However, to do so we would need to test the crap out of everything to be reasonably sure that there aren't bugs that are only uncovered by larger blocks like what happened when the soft limit was raised to 1MB.

I don't think it would be a problem.  Like Erdogan said, the miners will use the "tip-toe" method of increasing the block size.  Worst case, a large block gets orphaned and nobody tries again for a while.  But if the larger block doesn't get orphaned, then the network will assume that that size is now supported (thereby setting a new effective upper limit).

IMO, if we want to put the power directly in miners hands it would be better to raise the limit entirely.

This doesn't put the power directly in the miners' hands.  It keeps the power where it already is: in everybody's hands!  It just makes it much easier for people to exercise the power they already possess.  

Quote
However, to do so we would need to test the crap out of everything to be reasonably sure that there aren't bugs that are only uncovered by larger blocks like what happened when the soft limit was raised to 1MB.

I disagree.  For example, I would not set my node's limit to anything greater than 32 MB until I understood the 33.5 MB message size limitation better.  I expect many people would do the same thing.  Rational miners won't dare to randomly publish a 100 MB block, because they'd be worried that it would be orphaned.

Furthermore, since miners would likely use the "tip-toe" method, the effective block size limit will grow only in very small increments, helping to reveal any potential limitations before they become problems.



Okay... I'm going to have to agree with that.

But what if, when everyone is voting, an attacker sees that 50% is advertising < X MB and 50% is advertising > X MB with X obviously been larger than any block seen before.  By publishing a block of size X + 1 byte, the attacker effectively splits the network in half.  If he was previously 25+% of the network, he is now 50% of the two new forks and can either cause further bifurcation or anything else you can do with half the network.  Even if the attacker only has small hashpower, it will still cause a hash war between the two forks.

I suppose this could be mitigated if most nodes refuse to build on a block that is larger than what a supermajority votes for.

awemany might have answered your question here:

https://www.reddit.com/r/Bitcoin/comments/3eaxyk/idea_on_bitcoin_mailing_list_blocksize_freely/cu1tzuh

IOW, as a full node operator wanting to stay on the longest chain at all times, set your maximum block size high enough so as  not to be exceeded.

Ensuring you are part of the supermajority by looking at votes should give you a safe least upper bound.  Ensuring you have the largest size possible is a bit excessive and will raise your costs too much compared to someone who only upgrades when they are coming close to falling out of the supermajority (however they define that).

If miners don't take the supermajority into account, it could be a risk to the network.  Including a risk to the nodes with the highest limits as they suddenly become part of a chain with half as much hash power.
legendary
Activity: 1764
Merit: 1002
August 13, 2015, 04:41:21 PM
What about lying? If enough miners claim to support larger blocks but actually don't, then part of the network will waste time producing blocks that won't be built on.  IMO, if we want to put the power directly in miners hands it would be better to raise the limit entirely.  However, to do so we would need to test the crap out of everything to be reasonably sure that there aren't bugs that are only uncovered by larger blocks like what happened when the soft limit was raised to 1MB.

I don't think it would be a problem.  Like Erdogan said, the miners will use the "tip-toe" method of increasing the block size.  Worst case, a large block gets orphaned and nobody tries again for a while.  But if the larger block doesn't get orphaned, then the network will assume that that size is now supported (thereby setting a new effective upper limit).

IMO, if we want to put the power directly in miners hands it would be better to raise the limit entirely.

This doesn't put the power directly in the miners' hands.  It keeps the power where it already is: in everybody's hands!  It just makes it much easier for people to exercise the power they already possess.  

Quote
However, to do so we would need to test the crap out of everything to be reasonably sure that there aren't bugs that are only uncovered by larger blocks like what happened when the soft limit was raised to 1MB.

I disagree.  For example, I would not set my node's limit to anything greater than 32 MB until I understood the 33.5 MB message size limitation better.  I expect many people would do the same thing.  Rational miners won't dare to randomly publish a 100 MB block, because they'd be worried that it would be orphaned.

Furthermore, since miners would likely use the "tip-toe" method, the effective block size limit will grow only in very small increments, helping to reveal any potential limitations before they become problems.



Okay... I'm going to have to agree with that.

But what if, when everyone is voting, an attacker sees that 50% is advertising < X MB and 50% is advertising > X MB with X obviously been larger than any block seen before.  By publishing a block of size X + 1 byte, the attacker effectively splits the network in half.  If he was previously 25+% of the network, he is now 50% of the two new forks and can either cause further bifurcation or anything else you can do with half the network.  Even if the attacker only has small hashpower, it will still cause a hash war between the two forks.

I suppose this could be mitigated if most nodes refuse to build on a block that is larger than what a supermajority votes for.

awemany might have answered your question here:

https://www.reddit.com/r/Bitcoin/comments/3eaxyk/idea_on_bitcoin_mailing_list_blocksize_freely/cu1tzuh

IOW, as a full node operator wanting to stay on the longest chain at all times, set your maximum block size high enough so as  not to be exceeded.
legendary
Activity: 1904
Merit: 1002
August 13, 2015, 04:33:07 PM
What about lying? If enough miners claim to support larger blocks but actually don't, then part of the network will waste time producing blocks that won't be built on.  IMO, if we want to put the power directly in miners hands it would be better to raise the limit entirely.  However, to do so we would need to test the crap out of everything to be reasonably sure that there aren't bugs that are only uncovered by larger blocks like what happened when the soft limit was raised to 1MB.

I don't think it would be a problem.  Like Erdogan said, the miners will use the "tip-toe" method of increasing the block size.  Worst case, a large block gets orphaned and nobody tries again for a while.  But if the larger block doesn't get orphaned, then the network will assume that that size is now supported (thereby setting a new effective upper limit).

IMO, if we want to put the power directly in miners hands it would be better to raise the limit entirely.

This doesn't put the power directly in the miners' hands.  It keeps the power where it already is: in everybody's hands!  It just makes it much easier for people to exercise the power they already possess.  

Quote
However, to do so we would need to test the crap out of everything to be reasonably sure that there aren't bugs that are only uncovered by larger blocks like what happened when the soft limit was raised to 1MB.

I disagree.  For example, I would not set my node's limit to anything greater than 32 MB until I understood the 33.5 MB message size limitation better.  I expect many people would do the same thing.  Rational miners won't dare to randomly publish a 100 MB block, because they'd be worried that it would be orphaned.

Furthermore, since miners would likely use the "tip-toe" method, the effective block size limit will grow only in very small increments, helping to reveal any potential limitations before they become problems.



Okay... I'm going to have to agree with that.

But what if, when everyone is voting, an attacker sees that 50% is advertising < X MB and 50% is advertising > X MB with X obviously been larger than any block seen before.  By publishing a block of size X + 1 byte, the attacker effectively splits the network in half.  If he was previously 25+% of the network, he is now 50% of the two new forks and can either cause further bifurcation or anything else you can do with half the network.  Even if the attacker only has small hashpower, it will still cause a hash war between the two forks.

I suppose this could be mitigated if most nodes refuse to build on a block that is larger than what a supermajority votes for.
legendary
Activity: 1162
Merit: 1007
August 13, 2015, 03:41:57 PM

At this point I'd say just find a way to put the forks on the market and let's arbitrage it out. I will submit if a fork cannot gain the market cap advantage, and I suspect the small-blockers will likewise if Core loses it. Money talks.

I had a strange idea recently: what if we don't even bother with BIP100, BIP101, etc., or trying to come to "consensus" in some formal way.  What if, instead, we just make it very easy for node operators to adjust their block size limit.  Imagine a drop down menu where you can select "1 MB, 2 MB, 4 MB, 8 MB, … ."  What would happen?  

Personally, I'd just select some big block size limit, like 32 MB.  This way, I'd be guaranteed to follow the longest proof of work chain, regardless of what the effective block size limit becomes.  I'd expect many people to do the same thing.  Eventually, it becomes obvious that the economic majority is supporting a larger limit, and a brave miner publishes a block that is 1.1 MB is size.  We all witness that indeed that block got included into the longest proof of work chain, and then suddenly all miners are confident producing 1.1 MB blocks.  Thus, the effective block size limit slowly creeps upwards, as this process is repeated over and over as demand for block space grows.

TL/DR: maybe we don't need a strict definition for the max block size limit.

You know that you can do this now, right?  And always could.

The code is open source, you can (of course) just change it and compile.

I know that I could, but I also know that I won't, which is sort of another way of saying that I can't!

However, if everyone knows that everyone else could change the limit with just a couple key strokes, then the dynamics of the situation will be very different!  I know that in that case I both could and would change my block size limit.  Better yet: if, as awemany suggested, the software comes with no default block size limit, and the node operator has to pick something, then things will get very interesting.  
legendary
Activity: 1764
Merit: 1002
August 13, 2015, 03:40:49 PM
here's further evidence the Reddit mods are steering the blocksize debate. they're letting this guy spam attack me with false allegations despite me reporting him.  same post about a dozen times:

https://www.reddit.com/r/Bitcoin/comments/3gutfp/if_youre_not_running_a_node_youre_not_really/cu1x6fl
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