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bachback

1,000 karma · joined May 19, 2013

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bachback··on Programmable blockchains in context: Ethereum’s Future
https://github.com/ethereum/wiki/wiki/White-Paper
bachback··on High Frequency Trading Defined
The HFT debate is bound to be misunderstood... It rose to prominence last year with the book by Michael Lewis "Flash boys". A discussion between two exchange operators Bats and the new IEX: https://www.youtube.com/watch?v=RcpmHyPD_PY

This issue is not about frequency per se at all. Its about who has access to what information at what price. For instance one thing that happened was that data providers (e.g. Reuters) sold information to a group of traders, before it was available to the public.

The question is not at all whether software should be used to trade (we're not going back to pen & paper / pit trading). Rather the question is how software should be used in financial markets. HFT is not evil, it's a difficult problem to be solved.

bachback··on YC Stats
+probably coinbase
bachback··on YC Stats
see also: http://yclist.com
bachback··on What is Ethereum?
Good observation. There is a continuum in legal language between expressive power in the natural language and the legal formal language. "Absolute immutable contracts" are however very desirable in many cases where people interact with or through machines. Consider that modern computers, in terms of the hardware are extremely deterministic on a macro level, but a lot of the software is fuzzy (UI).
bachback··on What is Ethereum?
Yes, the problem is about not what happens on one machine, but N machines globally. That is a system that scales linearly and does not use proof-of-work. One needs to solve the Byzantine General Problem in a more general way than Bitcoin does.
bachback··on Critique of Paper by “Deep Learning Conspiracy”
lecture of the topic by the author: https://www.youtube.com/watch?v=JSNZA8jVcm4

Several founders from Deepmind where his PhD students.

bachback··on Leaving Stripe
I'd be curious to learn more about this mentioned S-Curve and possible institutional inertia. Stripe is an inspiring company - but ultimately a kind of mixed company in that it bridges the Internet to Credit card companies.
bachback··on Let’s all laugh at my horrible 2006 post: “YouTube is not a real business”
Very interesting. There is a very good interview with Chad about the wild ride: https://www.youtube.com/watch?v=l56Hw5H-DEI He talks quite a bit about their situation then.

Not many startups go from 0$ to 1.65B$ in 22 months.

Jason did not mention that Google itself was not a real business for a very long time. Are there good writeups of how Google managed to crack the biggest jackpot in business history with AdSense? Sure this experience taught them the lesson which they applied here. In poker terms it's like a draw to the nuts.

bachback··on Bloomberg Terminals Suffer Widespread Failures
Bloomberg started out as a network system independent of the Internet. Michael Bloomberg was a network engineer. I'm not sure they ever really switched to proper TCP/IP. This company sure looks like a dinosaur these days. However its hard to imagine a company being able to replace even a chunk of their infrastructure. They are tightly integrated into all institutions and there is no other service which offers a complete coverage of all the world's financial assets.
bachback··on Is Slack Really Worth $2.8B? A Conversation with Stewart Butterfield
Notifications of documents? Integration with a variety of services is new.
bachback··on The Cryptographic Doom Principle
what kind of "experts"? like NIST experts or experts at Microsoft? this a non-sensical meme in cryptography. it all comes down to the value at risk. at some price point you can hire people i.e. invest the resources to get it right. the reality is that many security libraries and principles are ancient and infrequently updated, that much of the research in the field is academic and useless. I think its much better to think in terms of risks. good security usually doesn't more value than bad security, until there is a breach.
bachback··on HFT in my backyard – VI
Any experts in auction mechanisms and HFT reading hackernews?
bachback··on Vitalik Buterin, Creator of Ethereum, Talks Bitcoin’s Most Ambitious Successor
Joint accounts are very useful. What one can do is issue stock at zero cost, have onchain accounting, be worldwide distributed etc., without the involvement of a lawyer or accountant. These things already exist in primitive form. For example there are already online communities with trusted members who provide escrow functions to manage the funds (basically an onchain Bitcoin foundation). Most of these things are being developed with Proof-of-stake systems, since they are already inherently based on explicit voting. Blocks get produced by vote of stake. While in Proof-of-work the computer doing the voting can change very frequently in PoS it's more constant. A good (old) paper in this respect is b-money: http://www.weidai.com/bmoney.txt
bachback··on Vitalik Buterin, Creator of Ethereum, Talks Bitcoin’s Most Ambitious Successor
I agree that there is a lot drivel, but I'd extend that to Bitcoin discussions also, where rarely economic underpinnings get discussed.

There is this notion of a contract. In a democracy a valid contract is an agreement (say between 2 parties) which is enforceable by courts and executive. Enforceable means that there is a cost of cheating. Even the most simple purchase contains a purchase agreement. If Alice walks into Bob's store and takes something without paying, then this is what we call theft (although the precise details of theft can be argued about ad infinitum).

In the real world when we enter agreements, we usually know to some extent who we are dealing with (Alice knows Bob's store). What would an arbitrary agreement over a network look like? That's hard to say. An analogon of a court is some arbitrary human decision, which can serve as an input. In Bitcoin there is no notion of an agreement, only cash transactions (and some limited facilities for escrow).

I believe that the concept of an oracle, and several other crypto-terms like Zero-knowledge proofs are an academic dead end. For my purposes I'm assuming that most people who want to use crypto systems don't understand or care about these things. There will be a great need for mapping abstract concepts to useful tools, such as an GUI operating system maps very abstract physical calculations and processes and makes them usable. I suspect 99% of Bitcoin users don't understand public-key cryptography, much less Elliptic curves and distributed systems. "Key", "signature" and "coins" are useful metaphors.

What is already happening are the first beginnings of joint stock ownership developing (DAC's) with mixtures of online formal agreements and informal agreements. Voting is not a panacea, but it helps. That's the kind of contract that can be developed in the short term.

bachback··on Vitalik Buterin, Creator of Ethereum, Talks Bitcoin’s Most Ambitious Successor
Much agree - those are the big conceptual holes in smart contracts. The concept still has a lot of merit, in the very long term. It's a bit like trying to imagine Google in 1993. Most of the things one can assume are most likely going to be wrong, including even the usages of these systems. I'd personally start with extending the Bitcoin script and thinking about better ways for multiple users to use it.
bachback··on Vitalik Buterin, Creator of Ethereum, Talks Bitcoin’s Most Ambitious Successor
I know that paper. The authors have no background in distributed systems and use math to prove absurd things. If you look at the core proposed algorithm, it's not even a P2P algorithm.
bachback··on Vitalik Buterin, Creator of Ethereum, Talks Bitcoin’s Most Ambitious Successor
Right. It's not really a block-chain, but a block-tree (whatever that is supposed to be).

I suspect to make smart contracts work, one needs a different time-stamping/incentive system altogether (non-blockchain), but haven't seen any progress in that direction.

bachback··on Vitalik Buterin, Creator of Ethereum, Talks Bitcoin’s Most Ambitious Successor
10M$ in one year, i.e. 30,000$ per day is a reasonable burn rate?
bachback··on Vitalik Buterin, Creator of Ethereum, Talks Bitcoin’s Most Ambitious Successor
raised = 18m$

assets left = 7.5m$

expense = 4m$

trading losses = 6.5m

It's an insane amount of money to burn through, without releasing anything of utility so far. I had to deal with several people from that team and they are scammers. Idea itself is interesting, but not workable.

bachback··on Remembering My Cousin, Ludwig Wittgenstein (1977)
Wittgenstein gave some lectures on mathematics and logic, where Alan Turing was present and they had discussions about mathematics (a book is available with the lectures on mathematics). That was 3 years after on Turing's paper on computable numbers.
bachback··on Breach – A new modular browser
Work on new foundational layer is ongoing: https://github.com/breach/thrust
bachback··on Decentralize All the Things
With Namecoin anyone can design new naming protocols based on consensus. That's not possible with ICANN's DNS (the Internet is centralized in this regard - nobody can change the semantics of ".com"). New naming protocols are a huge deal => for searching & finding any information, for Identification, and more. Namecoin did not get it right, and PoW style blockchains are too complicated. But potentially one gets things like single-sign on, integrated micropayments, and things which are hard to imagine (smart contracts, etc.).
bachback··on Decentralize All the Things
Very interesting. How about creating a github project for this? Would like to follow.

Blockchain based DNS systems already exist. Web search mostly builds on links and DNS. If one thinks about it TLD names are pretty much fixed, where as in Namecoin they are subject to consensus. What one can do, and that's one example out of many, is create unique hashes for any content to create indestructible information.

bachback··on The First Website Ever Made
Other milestones:

Post on alt.hypertext on 6/8/1991

https://groups.google.com/forum/#!msg/alt.hypertext/eCTkkOoW...

NCSA X Mosaic 0.5 released, 23/1/1993

http://1997.webhistory.org/www.lists/www-talk.1993q1/0099.ht...

bachback··on Waitin' (on Leiningen)
Leining is a very useful tool. Starting up Clojure indeed is noticeable. I wonder how much of the performance is due to Maven, and if gradle would do better. Gradle is a newer project with a custom DSL based on Groovy.
bachback··on Possible upcoming attempts to disable the Tor network
interesting - how does this work?
bachback··on Bitcoin Developer Guide
Mike's great 2012 talk [1].

Unfortunately 2 years later, we're not much further in those developments. Bitcoin has severe limitations, also because it has now a legacy to support. New projects can start with a fresh design. So far we've only seen very few new approaches. While many Bitcoiners realize the imperfections of the system, very few actually think there could be something better.

[1] https://www.youtube.com/watch?v=mD4L7xDNCmA

bachback··on Bitcoin and the double-spending problem (2013)
The paper this refers to [1]. Not waiting for confirmation has nothing to do with double spend. Its a probabilistic measure - the original paper show the poisson distribution, based on number of confirms. Beware of noobs with algebra. "As we show in this work, the propagation of double-spending alerts in the network would constitute a first important step towards efficiently detecting doublespending." The bitcoin project is waiting for their pull-request.

[1] http://eprint.iacr.org/2012/248.pdf

bachback··on Safety, liveness and fault tolerance—the consensus choices
Exactly the opposite. Soft money through breaches of trust are the problems that Bitcoin solve. That is why Ripple/Stellar is particularly absurd, because we have now solved the problem and these systems don't integrate that knowledge. Ripple Inc printed money for themselves - they reserved 80% of the initial distribution, and changed the money supply (which is why Jed left AFAIK). In the cryptocurrency community nobody takes these projects too seriously. Look at the forums, they are empty, and the feedback on the main forums have always been very negative - for good reasons.
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