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  1. <@coblee> Luke-Jr: what's up?
  2. <Luke-Jr> coblee: is there any chance you would be willing to shutdown litecoin, or request mtgox to not trade it, for the sake of Bitcoin?
  3. <Luke-Jr> (pending further discussion of course)
  4. <@coblee> Luke-Jr: you do know that no one (not even me) can shutdown a decentralized currency, right?
  5. <iddo> Luke-Jr: it's good to test social behavior with litecoin, suppose for example that litecoin and all other alcoins didn't exist, and you invested in bitcoin, you wouldn't know what will happen to your invest when suddenly some new alt coin like litecoin would appear
  6. <Luke-Jr> coblee: yes and no
  7. * C0deMaver1ck (~C0deMaver@unaffiliated/beau/x-8351432) Quit (Ping timeout: 264 seconds)
  8. <Luke-Jr> iddo: the threat isn't litecoin per se, as much as it is MtGox trading litecoin
  9. <iddo> coblee: maybe Luke has this in mind: http://www.reddit.com/r/litecoin/comments/1bf2l6/ask_for_litecoin_on_mtgox_and_on_every_other_btc/c96abou
  10. <@coblee> and if somehow litecoin does die, some other alt coin will take its place
  11. <@coblee> you should talk to MagicalTux instead then
  12. <Luke-Jr> coblee: MagicalTux is not discussing it
  13. * C0deMaver1ck ([email protected]) has joined #litecoin-dev
  14. * C0deMaver1ck ([email protected]) Quit (Changing host)
  15. * C0deMaver1ck (~C0deMaver@unaffiliated/beau/x-8351432) has joined #litecoin-dev
  16. <@coblee> i thought it was just an april fools joke
  17. <iddo> i think that it's just the marketing dept. of mtgox
  18. <iddo> not sure about april fools, two people there said that they got same reply
  19. <Luke-Jr> coblee: currently my only option is to coordinate a FPGA-based 51% shutdown; I'm hoping to find some other more friendly avenues
  20. <[yAK]> https://data.mtgox.com/api/2/LTCUSD/money/ticker
  21. <Graet> he is goxxing ltc, price has tripled since the gox announce - what will happen if he pulls support now? major crash....
  22. <[yAK]> ^ ill just leave that there
  23. <@coblee> might be a mtgox pump and dump. buy a ton of litecoins, announce rumor of supporting it, adnd dump
  24. <iddo> seems more like standard marketing mumbojumbo
  25. <Graet> Luke-Jr, how about not supporting scrypt in your miner - if you really want o do something....
  26. <Luke-Jr> Graet: explain how that would change anything?
  27. <iddo> Luke-Jr: do you have a rough estimate of the cost of that 51% FPGA attack?
  28. <Graet> well seems strange you running around calling ltc a scam, aking coblee to take it down, but you support it in your miner....
  29. <@coblee> Luke-Jr: I don't think you will be able to shut Litecoin down without losing a ton of money. And you'd only be able to do it temporarily. look at bbqcoin, it's back too
  30. <Luke-Jr> coblee: it doesn't need to be shutdown permanently, just enough to make MtGox reconsider
  31. <Luke-Jr> iddo: existing Bitcoin FPGAs are sufficient, just a matter of the right bitstreams
  32. * rdponticelli ([email protected]) Quit (Ping timeout: 248 seconds)
  33. <iddo> Luke-Jr: how many FPGAs could you control?
  34. <Luke-Jr> iddo: 10 FPGAs is enough to get 51%
  35. <iddo> i doubt that figure
  36. <Luke-Jr> admittedly, it's not proven in practice yet, but I doubt it would vary significantly
  37. <@coblee> Luke-Jr: that's funny
  38. <iddo> how much faster is a typical FPGA comapred to say 5970 ?
  39. <Luke-Jr> coblee: ?
  40. <@coblee> are you working on a script fpga?
  41. <iddo> Luke-Jr: don't forget that a lot of GPU power is probably migrating to litecoin now, because of bitcoin ASICs
  42. <Luke-Jr> coblee: I know multiple people who are thinking about it, and who are willing to take action to protect bitcoin
  43. <@coblee> afaik, fpga are equivalent to gpus. maybe a bit more efticient
  44. <iddo> there was forum post on scrypt FPGA, i don't remember if it was in final stage yet
  45. <Graet> funny thing Luke-Jr - there are plenty of gpu miners that would jump over if you attacked....
  46. <Graet> but really Luke-Jr stooping to altchain type wars isnt good fort bitcoin....
  47. <@coblee> right now, you can make 5x the bitcoins mining litecoins: http://dustcoin.com/mining
  48. <iddo> Luke-Jr: multiple people? i'm not aware of anyone else hostile to litecoin as much as you... who?
  49. <@coblee> i'm sure a lot of gpu miners are switching over
  50. <Luke-Jr> iddo: they'd prefer I take the backlash of course
  51. <iddo> ok
  52. <Luke-Jr> coblee: anyhow, back to the topic: are YOU willing to do anything to protect bitcoin?
  53. <iddo> but you'll probably need 100s or 1000s of FPGAs, not 10
  54. <iddo> Luke-Jr: i don't think that most people agree with your reasoning, the litecoin hurts bitcoin
  55. <iddo> Luke-Jr: could you please explain why you disagree with the reason that i gave, about testing human behavior towards altcoins in order to get real price discovery for the value of bitcoin?
  56. <iddo> s/the litecoin/that litecoin
  57. <@coblee> Luke-Jr: I don't think Litecoin hurts Bitcoin
  58. <Luke-Jr> iddo: again, the problem isn't litecoin as much as it is MtGox trading litecoin
  59. <@coblee> if it did, i don't think btc will be at $100 today
  60. <Graet> well fix gox, dont break litecoin
  61. <Luke-Jr> litecoin is clearly a pump and dump scheme, and when it fails, the fact that *the* Bitcoin exchange was promoting it is going to reflect terrible on bitcoin
  62. <Luke-Jr> people are going to just write off all cryptocurrency as pump & dump
  63. * GordonG3kko (~GordonG3k@gateway/tor-sasl/gordong3kko) has joined #litecoin-dev
  64. <iddo> ok now at least i understand your reasoning
  65. <@coblee> Luke-Jr: no need to attack litecoin. quoting you: "the existing network effect of Bitcoin, combined with the lack of meaningful differentiation between Litecoin and Bitcoin and Litecoin's adoption of a "designed to fail" proof-of-work algorithm; that Litecoin is bound to fail in the end."
  66. <Luke-Jr> even if you disagree with it being a scam, are you willing to stake Bitcoin on your opinion being right?
  67. <@coblee> so in time, it will fail by itself. unless you don't believe your own lies on the wiki :)
  68. <Luke-Jr> coblee: yes, it will. but with MtGox promoting it, it will kill ALL cryptocurrency at the same time
  69. <iddo> you describe what possible scenario, you seem to be convinced that it's inevitable scenario, but most people (at least here) disagree
  70. <iddo> s/what/one
  71. <@coblee> Luke-Jr: i don't have a god complex such that I believe I have the power to kill or save bitcoin
  72. <Luke-Jr> iddo: are you willing to bet Bitcoin's existence on that?
  73. <Luke-Jr> s/existence/success/
  74. <@coblee> mtgox promoting litecoin and litecoin failing will not kill bitcoin
  75. <Luke-Jr> coblee: think about it, I gotta run to the airport and back
  76. <iddo> Luke-Jr: i disagree with that dichotomy because i think that having litecoin is helpful for bitcoin
  77. <@coblee> 1 exchange + 1 alt currency should not be able to kill bitcoin. if it does, then bitcoin had no chance from the start
  78. <Luke-Jr> coblee: from the perspective of a normal person, who sees MtGox as the face of Bitcoin
  79. <Graet> i agree with coblee , if bitcoin is that fragile its doomed to failure anyway
  80. <@coblee> you're too short sighted. maybe it will hurt bitcoin a bit. like the mtgox hack caused it to drop to $2. but in the long term, bitcoin (and litecoin) will survive
  81. <@coblee> anyways, i got to go. we can talk later if you want
  82. <Luke-Jr> coblee: you're being (unrealistically) optimistic there..
  83. <Luke-Jr> how can you be 100% certain litecoin will survive?
  84. <@coblee> who's 100% certain of anything?
  85. <iddo> Luke-Jr: maybe you should think about it from another perspective: if bitcoin cannot survive the litecoin (supposed) crash, then bitcoin is too weak to be allowed to exist?
  86. <@coblee> iddo: exactly
  87. <Luke-Jr> iddo: it is too weak today, yes
  88. <Luke-Jr> bbiab
  89. <@coblee> ok, later
  90. <iddo> Luke-Jr: ok we can continue this discussion later:)
  91. <OneMiner> Litecoin has the same options as bitcoin in the event of a disaster. Checkpoint, hardfork to new algo. There's more similarity than difference again.
  92. <iddo> OneMiner: about your earlier question where you have scrypt ASIC miner, read this https://bitcointalk.org/index.php?topic=146191.msg1557247#msg1557247
  93. <OneMiner> k
  94. <iddo> OneMiner: if only you have the ASIC miner then it's trivial to hardfork litecoin so that your ASIC is useless and everyone except you will prefer the fork
  95. <iddo> but if the majority of the miners have ASICs then it's less clear what will happen after the hardfork, what gmaxwell wrore there is relevant
  96. <OneMiner> iddo I'm aware of that. What I wonder is how prepared we are for that. If I attack NOW (I won't) how long until we can start to hardfork?
  97. <OneMiner> Because with my imaginary ASIC, I'd presume that the cost to attack would be trivial.
  98. <OneMiner> ~couple hundred watts.
  99. <iddo> it's easy to change some scrypt param and tell the pools to use the new version of the client
  100. <iddo> anyway, scrypt ASIC is not in the cards
  101. <OneMiner> Oh, I think it is.
  102. <OneMiner> It's a matter of time as it was for bitcoin.
  103. <iddo> OneMiner: you should also read the PoA thread, there the ASIC miners will be useless anyway
  104. * redeeman ([email protected]) has joined #litecoin-dev
  105. <OneMiner> I hate the fourm so much.... Could you link me please?
  106. <iddo> OneMiner: did you see page 19 of the scrypt slides ?
  107. <OneMiner> No. lol?
  108. <iddo> page 19 explains why scrypt ASIC isn't in the cards
  109. <OneMiner> I'm not even sure what you are refrencing. Scrypt slides?
  110. * bernard75 (~bernard75@unaffiliated/bernard75) has joined #litecoin-dev
  111. <iddo> OneMiner: about PoA, start either from the first post or from here: https://bitcointalk.org/index.php?topic=102355.msg1437768#msg1437768
  112. <OneMiner> But you can replace ASIC with FPGA then. Assuming Luke is onto something.
  113. <iddo> OneMiner: scrypt slides are at http://www.tarsnap.com/scrypt/scrypt-slides.pdf
  114. <lupine> it's your average time-space tradeoff
  115. <lupine> it's perfectly possible to do scrypt in low-memory, it's just more computationally expensive
  116. <lupine> if your asics are ridiculously more powerful than everything else around, then maybe that's not an issue and you can get away without the ram. I don't know the numbers
  117. * area (~area@unaffiliated/area) has joined #litecoin-dev
  118. * pjorrit_ ([email protected]) has joined #litecoin-dev
  119. <iddo> lupine: you need 128.5k of memory per hash attempt, if you have low memory then you cannot do many attempts in parallels
  120. <OneMiner> I disagree in general that scrypt is ASIC proof at all. You simply make a mask and create chips. The complexity of the design is a non point because you just make the mask for it and boom, you're in buisness.
  121. <lupine> the memory is to store intermediates that you can, in theory, generate from scratch each time. they are used lots of times to try to make that unattractive
  122. <[yAK]> OneMiner: the reason why it is is because how easy it is to change the params of it
  123. <[yAK]> asics cost a lot to initially create
  124. <iddo> OneMiner: the point is that producing that ASIC will be a lot more expensive than SHA256 ASIC
  125. <[yAK]> one small change makes them worthless
  126. <[yAK]> iddo: is it the consensus of the litecoin development that asics type devices are unwanted?
  127. <helo> that part is the same as sha asics, so it's not relevant
  128. <iddo> lupine: no idea what you meant, each scrypt hash attempt must fill 128.5k of memory with pseudorandom sequence, you cannot get around that
  129. <OneMiner> How much tolerance would we have for hardforks though? A single ASIC could probably be produced for under $100k (pulling that from my butt) and it could potentially dominate the mining.... landscape, whatever.
  130. <OneMiner> You don't have to do a full run is what I'm saying.
  131. <OneMiner> Some university student could potentially create one at very low cost.
  132. <OneMiner> You just cram cache on the chip like a mofo. Problem solved for a custom design.
  133. <iddo> [yAK]: initially scrypt was chosen because GPUs were unwanted, but the chosen scrypt params weren't intensive enough to exclude GPUs, anyway i'd say that the answer is yes, ASIC is unwanted, and isn't cost-efficent to produce anyway
  134. * space_cadet (~space_cad@unaffiliated/space-cadet/x-5908614) has joined #litecoin-dev
  135. <lupine> iddo, in the canonical implementation, you generate the sequence, and then take many subsets of that sequence by indexing to it
  136. <[yAK]> what if in theory litecoin was worth what btc is worth right now? would you think that it would be cost effective then?
  137. <lupine> if you remember the seed (4 bytes), then for each byte you need to index, you can regenerate the sequence from the PRNG, into a small buffer, for each access
  138. <iddo> lupine: why? each hash attempt has completely different sequence?
  139. <lupine> this is while trying to generate one hash
  140. <lupine> I'm not saying that it is actually a good idea
  141. <lupine> I don't have the numbers for that
  142. <OneMiner> [yAK] For sure! Someone would gamble on producing a chip. There's the process, what's it called.... MOSIS? I'll look.
  143. <lupine> if RAM really is as expensive as they say for ASICs, it may be the better option though
  144. <OneMiner> http://www.mosis.com/pages/about/whatis
  145. <lupine> http://en.wikipedia.org/wiki/Scrypt goes over it if you're unsure
  146. <OneMiner> Not that I know what I'm talking about but I think you'd shoot for epic amounts of low latency cashe on the chip.
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