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Viewing profile — nehan

nehan

HN member
Joined
Tue, May 18, 2010, 5:56 PM UTC
HN karma
143
Public activity
34 items

About nehan

Director of the Digital Currency Initiative at the MIT Media Lab.

http://nehanarula.org

Recent public activity

  1. comment
    Comment #47838357

    excellent point! I agree.

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    Comment #47706134

    I can't think of heuristics available on the Bitcoin P2P network that would be helpful for this, but I'm curious if you have any in mind.

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    Comment #47689027

    Sorry I wasn't clear there. Because most of the short-depth is controlled by centralized exchanges, there's a risk you won't be able to actualize your short (withdraw, either in cr…

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    Comment #47688992

    The point is you can't distinguish transactions that are from an "attacker" when the underlying signature scheme is broken. The Bitcoin P2P network has some metrics to disconnect f…

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    Comment #47682299

    Also, LetsEncrypt is very cool! Thanks for working on it.

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    Comment #47682202

    This work is important, and I'm looking forward to forming an opinion on it. Maybe a future post! For those who are interested, this is what I'm aware of: - Tim Ruffing proved that…

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    Comment #47682149

    two things: 1) Short markets in Bitcoin don't have unlimited depth, and the centralized ones are KYC'd so there's some risk there 2) What if it doesn't tank the price? One thing pe…

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    Comment #27812752

    This isn't a proposal for a US CBDC. It's research on technical tradeoffs that might need to be addressed in a hypothetical CBDC.

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    Comment #8727304

    No. In serializable mode it simply appears that one thing is happening at a time. You can touch unrelated data concurrently with no performance impact.

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    Comment #8727297

    serializability != one giant lock around your database. concurrency and serializability go together great. it's only if transactions actually read/write or write/write the same dat…

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    Comment #8633044

    re: materialized views -- you can kind of fake them in PostgreSQL by creating a view, populating it, and then defining triggers on insert, delete, and updates to your source tables…

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    Comment #8605113

    This -- you have to realize there are two different versions of you. You1 is ambitious and smart and wants to do awesome things. You1 should think things through, actually plan thi…

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    Comment #5203914

    All the lecture notes will be put online, and you are welcome to clone the code and do the labs. If your code passes the tests reliably, you would have gotten full credit.

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    Comment #5203898

    I don't think you could do this without actually solving the labs the way we wanted you to.

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    Comment #5203891

    I'm the TA for the class. The first lab was intended to get students up to speed with go; the rest of the labs are significantly harder. That said, the labs are completely new, so …

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    Comment #4659932

    Challenging social norms just for the sake of challenging them is not something to be lauded. You would be taken more seriously if you provided a well-reasoned response based on fa…