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Question: Will you support Gavin's new block size limit hard fork of 8MB by January 1, 2016 then doubling every 2 years?
1.  yes
2.  no

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Author Topic: Gold collapsing. Bitcoin UP.  (Read 2010034 times)
iCEBREAKER
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July 05, 2015, 10:54:08 AM
 #28181

Rarely, do good critics make better artist. ATM Ben Jonson, the poet/critic is the only example I can think of, but that is more of a tie than him being better at one or the other.

Siskel had godawful shitty taste in Hollywood palaver and thus couldn't be expected to do any better himself.

OTOH, Charlie Brooker is a fantastically vicious UK media critic and social commenter.  He also makes superlative TV, like Dead Set and Black Mirror.

The 'conflict-of-interest' canard is an excuse by and for those who can't but presume to opine on whose who can.


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TPTB_need_war
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July 05, 2015, 10:54:48 AM
 #28182

But nevermind that, let's all weep for poor barbequed Peter.  I'll send him some aloe vera lotion, care of the burn ward.   Cheesy

Now I understand your username. The heat of the venom. I suppose if one can't take heat, get out of the kitchen?

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July 05, 2015, 12:36:44 PM
 #28183

Am I being sensitive or is this an unnecessarily spiteful reply from Greg Maxwell?:

Quote
...
You've shown that you can throw a bunch of symbolic markup and mix in a lack of understanding and measurement and make a pseudo-scientific argument that will mislead a lot of people, and that you're willing to do so or too ignorant to even realize what you're doing.

He sounds bitter.

Oh boo hoo, poor Peter got mildly but most-deservedly flamed for spouting pseudo-scientific nonsense on stilts.  He'll be in therapy for years!   Roll Eyes

Gmax is just understandably impatient with his job being made harder by the Gavinistas' endless defamation, exaggerations, BS, and agitprop:

Quote
your analysis was off by orders of magnitude even in the most charitable interpretation
perhaps you should keep in mind that sharing a work which confirms political preferences with a largely non-technical crowd is not likely to bring useful additional criticism.

Gmax is not a punching bag; he's allowed to hit back when people accuse him of obstructionism for personal profit.  The Gavinista whining about 'ad hom' in that context is spectacularly hypocritical.  "I'll post the napkin pic illustrating Evil Blockstream's Snidely Whiplash scheme, then tsk-tsk Gmax for reacting with anything more than cool professional detachment...that'll show everyone what Awful People the core devs are!"

But nevermind that, let's all weep for poor barbequed Peter.  I'll send him some aloe vera lotion, care of the burn ward.   Cheesy

I think this was a shot at Gavin Shocked

Quote
But would you prefer I no longer engage and support people on reddit, and rather play the role of an aloof figure head the way that many who do far less and yet receive far more respect do?

Forgive my petulance and oft-times, I fear, ill-founded criticisms, and forgive me that I have, by this time, made your eyes and head ache with my long letter. But I cannot forgo hastily the pleasure and pride of thus conversing with you.
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July 05, 2015, 12:42:59 PM
 #28184

Am I being sensitive or is this an unnecessarily spiteful reply from Greg Maxwell?:

Quote
...
You've shown that you can throw a bunch of symbolic markup and mix in a lack of understanding and measurement and make a pseudo-scientific argument that will mislead a lot of people, and that you're willing to do so or too ignorant to even realize what you're doing.

He sounds bitter.

Oh boo hoo, poor Peter got mildly but most-deservedly flamed for spouting pseudo-scientific nonsense on stilts.  He'll be in therapy for years!   Roll Eyes

Gmax is just understandably impatient with his job being made harder by the Gavinistas' endless defamation, exaggerations, BS, and agitprop:

Quote
your analysis was off by orders of magnitude even in the most charitable interpretation
perhaps you should keep in mind that sharing a work which confirms political preferences with a largely non-technical crowd is not likely to bring useful additional criticism.

Gmax is not a punching bag; he's allowed to hit back when people accuse him of obstructionism for personal profit.  The Gavinista whining about 'ad hom' in that context is spectacularly hypocritical.  "I'll post the napkin pic illustrating Evil Blockstream's Snidely Whiplash scheme, then tsk-tsk Gmax for reacting with anything more than cool professional detachment...that'll show everyone what Awful People the core devs are!"

But nevermind that, let's all weep for poor barbequed Peter.  I'll send him some aloe vera lotion, care of the burn ward.   Cheesy

Gmaxes argument lives and dies on his assertion of 80ms block validation times.  We now have to go off and independently verify this.  Then we have to figure out the discrepancy between this number and the painfully slow sync times and 100% cpu use during sync.  This work may discover inefficiencies and result in optimizations that have nothing to do with the holy war going on.  Peter is looking at the system as a black box and analyzing its emergent properties.  Gmax is looking inside the box.  We need to resolve the contradiction.

Regardless gmaxes argument was not a barbecue -- that would have happened if the math was flawed for example.  In fact gmax's "argument" is just another guy making an unsubstantiated (but likely true) contrary claim.  You know this because what if you run core and post "that's funny I am seeing 5 sec times"? What happens is gmaxes entire argument fails.

    Its sad that you can't tell the difference between an argument and an unsubstantiated claim.
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July 05, 2015, 01:25:56 PM
 #28185

( seeing as I was poking the bear anyway: Bitcoin Block sizes and # of transactions by pool attr [imgur.com album] )

pönde
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July 05, 2015, 02:24:36 PM
 #28186

I think it is correct to invest small amounts in many promising, +EV projects, Bitcoin and Monero (and Newcoin) included.

What are +EV projects? What is Newcoin?
cypherdoc
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July 05, 2015, 05:20:24 PM
 #28187

right back at it:

Peter R
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July 05, 2015, 05:34:29 PM
 #28188

Peter is looking at the system as a black box and analyzing its emergent properties.  Gmax is looking inside the box.  We need to resolve the contradiction.

Thanks for pointing out the difference between the black-box approach and "looking inside the box."  I think the black box approach is useful because it forces us to consider the actual behaviour of the complete system, and then ask if our understanding of the inner pieces make sense given our observations. 

The other thing is that in my model, τ, is more properly the time delay between when the miner has enough information to begin mining on the previous blockheader, and when he has fully verified the previous block, created a new non-empty block to mine on, and sent the block template for that non-empty block to his hash power to begin working on it.  Gmax was only considering one component of this time delay.  

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July 05, 2015, 05:43:22 PM
 #28189

Thanks for pointing out the difference between the black-box approach and "looking inside the box."  I think the black box approach is useful because it forces us to consider the actual behaviour of the complete system, and then ask if our understanding of the inner pieces make sense given these measurements.
The #bitcoin-wizards have fallen into that trap before, when the btcd team announced the results of their benchmarking on large simnet blocks.

Their complete system measurements were quite a bit slower than what the individual component microbenchmarks suggested.

If you look at the comments made regarding their blog post, you'll see the same dynamic playing out as is here.
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July 05, 2015, 06:28:37 PM
 #28190

ok, i couldn't but help notice the contradiction:

https://www.reddit.com/r/Bitcoin/comments/3c579i/yesterdays_fork_suggests_we_dont_need_a_blocksize/cssz5ea

awaiting a response.
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July 05, 2015, 06:30:53 PM
 #28191

Conclusion: As the average blocksize gets larger, the time to verify the previous block also gets larger. This means that miners will be motivated to improve how quickly their nodes can perform the ECDSA operations needed to verify blocks or that they will be more motivated to trick the system.

you missed the most important alternative of all. 

miners will pare down block sizes for maximum verification times and propagation times.
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July 05, 2015, 06:52:52 PM
 #28192

Don't get put-off from posting by Greg's feedback as it is easy to be silenced by someone-who-knows-best and let them run the show.
My big takeaway from his comment is how you got him into arguing from a position that big blocks are OK (handclap and kudos to you). In fact, I have learnt now that even 7.5GB blocks are today theoretically tolerable in at least one respect (validation where tx are pre-validated), although l suspect not in quite a number of other crucial respects.
Wasn't Gavin's doubling end-point 8GB in 2036? Effectively the same end-point!

I am reminded of Mike Hearn's words of wisdom:
Quote
Scaling Bitcoin can only be achieved by letting it grow, and letting people tackle each bottleneck as it arises at the right times. Not by convincing ourselves that success is failure.

One less bottleneck to expect with larger blocks.



ok, we've all been lead to believe up to now that validation of tx's had to occur twice by full nodes.  first, upon receipt.  second, upon receipt of the block.  this was crucial to the FUD scare tactic of decrementing full nodes and thus "centralization" we were getting last month by the BS core devs via the "large miner w/ superior connectivity attack on small miners".  now we here about this new mechanism of "pre-validation" that allows tx's to only have to be validated once upon receipt but not necessarily on receipt of a block?

what am i missing?
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July 05, 2015, 07:02:59 PM
 #28193


I am reminded of Mike Hearn's words of wisdom:
Quote
Scaling Bitcoin can only be achieved by letting it grow, and letting people tackle each bottleneck as it arises at the right times. Not by convincing ourselves that success is failure.

One less bottleneck to expect with larger blocks.



exactly right.

sometimes it takes a hundred steps to walk across the street.
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July 05, 2015, 07:12:19 PM
 #28194

interesting, isn't it?

We will continue do SPV mining despite the incident, and I think so will AntPool and BTC China.

Another very good reason people should not mine on Chinese pools.  This is EXTREMELY bad for the Bitcoin network.


yes they will.  and do you blame them?  until the 1MB limit stops jacking up the unconf tx set thru either spamming or real demand, they can't be bothered to go thru the computation to order or pare down this larger than normal set.  SPV is the easiest, simplest way to get around constructing a full block that has the potential to be orphaned.

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July 05, 2015, 07:18:14 PM
 #28195

We just need someone to figure out how to constantly feed them invalid blocks. Wink

I'm surprised to hear this from you, Holliday.  Can you explain why you think mining on the blockheader during the short time it takes to validate the block is bad?  It is clearly the profit-maximizing strategy, and I also believe it is ethically sound (unlike replace-by-fee).  

Are they mining on the blockheader during the short time it takes to validate the block, or are they simply skipping validation entirely?

Miners are supposed to secure the network, ehh? If they are just blindly mining on whatever they are fed, they aren't doing a very good job, are they?

i think they're reacting to the larger unconf tx sets being created as a result of the 1MB cap.  they don't want to have to both verify the full blocks coming thru nor construct efficient block sizes from that set.  if the cap was lifted, the unconf tx set should drop in size as faster validating miners can swallow the large unconf sets in one gulp and stuff it into a single block to keep the size of the set down thus discouraging further spamming and the deviant SPV behavior.
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July 05, 2015, 07:23:34 PM
 #28196

I see no problem with SPV mining while verifying the previous block. It would also make my above suggestion pointless.

Yes.

Moreover, I don't see why the time spent verifying is very significant. The vast majority of transactions would have been verified by a full node before being included in the block, and then it is just a case of checking the hash. The verification time for a block would then be insignificant relative to its download time.

Great point.  Does anyone know how Bitcoin Core currently works in this regards?  Is every transaction in a block (re-) verified?  Or are the transactions first hashed, and if matched to a TX in mempool not re-verified, thus saving time. 

but, but pwuille told us that a large block attack from a large miner would choke off small miners! 

don't forget that the top 5 largest miners in the world have inferior connectivity, not superior, like he told us.
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July 05, 2015, 07:44:04 PM
 #28197

I've learned loooooooooong ago that miners are bottom feeders who have no concept of the idea of protecting their investment.
This is a self-correcting problem.

Peter R
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July 05, 2015, 07:46:28 PM
 #28198

and do you blame them?

Yes, it's called cutting off the nose to spite the face. I've learned loooooooooong ago that miners are bottom feeders who have no concept of the idea of protecting their investment.

Remember, there are two issues here: SPV mining empty blocks while you're validating the previous block, and what F2Pool appeared to do that caused the problem: never getting around to actually validating the previous block at all!  

I don't see why SPV mining empty blocks for the short amount of time it takes to validate the previous block is harmful to the network's health (I think it is actually helpful).  

On the other hand, I see what F2Pool did as hurtful to the network, and they were punished accordingly with a loss of 100 BTC.  

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July 05, 2015, 07:51:53 PM
 #28199

Somebody is buying a lot of bitcoins today.
molecular
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July 05, 2015, 08:09:36 PM
 #28200

Somebody is buying a lot of bitcoins today.

I think it's at least 2 guys.

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