Shaanan Cohney Profile
Shaanan Cohney

@shaananc

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Systems Security, Applied Crypto, Public Policy, Choral music, Senior Lecturer (US Assoc. Prof) @unimelb — tweets used to delete after two weeks?

Melbourne, Victoria
Joined May 2007
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@shaananc
Shaanan Cohney
9 days
RT @emollick: Many firms built around the limitations & cost assumptions of GPT-3.5 class models, and are now stuck with complex solutions….
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@shaananc
Shaanan Cohney
28 days
RT @random_walker: The origin story of “AI as Normal Technology”, and lessons learned. Many people have asked how the “AI as Normal Technol….
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@shaananc
Shaanan Cohney
29 days
So exciting to see an Australian show win at the Tonys for the performance of the inestimable Sarah Snook. Go see @DorianGrayPlay on Broadway if you haven’t already (I caught it in Melbourne—10/10).
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@shaananc
Shaanan Cohney
1 month
RT @emollick: The fact that Gemini Deep Research can’t read Google Books is frustrating. Google is sitting on the largest inaccessible sour….
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@shaananc
Shaanan Cohney
2 months
Net, there's a lot of rhetoric, that in my mind does not bear water. There is a reason the question of the computability of the mind has stymied us for nearly a century!. I'm no philosopher, so take a grain of salt. 9/9.
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@shaananc
Shaanan Cohney
2 months
On computability, the authors rely on an argument claiming non-computability of a certain process, and then disclaim a result showing that indeed that process can be simulated in lambda calculus! Dismissing it, they don't meet a burden to show what wasn't simulated. 8/9.
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@shaananc
Shaanan Cohney
2 months
The paper then points to Godel incompleteness–which speaks deeply to the formal-system limits (no system can prove all true things) to claims that are quite unrelated (that biological organisms would be practically limited were they formalizable) 7/9.
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@shaananc
Shaanan Cohney
2 months
Likewise, there's no reason to believe that similar precision cannot be attained for all the other external inputs to a biological system. 6/9.
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@shaananc
Shaanan Cohney
2 months
Yet, our ability to construct image-processing models of arbitrary resolution (current hardware constraints not withstanding) are a direct refutation. "Algorithms" can process visual at the same numerical precision that can be sent by a biological eye. 5/9.
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@shaananc
Shaanan Cohney
2 months
This points to a deeper problem: the paper conflates formalizability and computability. wrt the former, an argument is given from the apparent intractability of formalizing the inputs that an organism receives–with an implication that non-discreteness is an issue. 4/9.
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@shaananc
Shaanan Cohney
2 months
The biggest underlying issue is that the work is stuck in the computer science of the 1980s!. The work assumes an ontology of computers that focusses on symbol manipulation on hand-tailored input features and well defined outputs. The rise of large models stands in contrast. 3/9.
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@shaananc
Shaanan Cohney
2 months
Among its arguments: 1) reality is continuous, computers are discrete . 2) complex systems cannot be captured in the framework of Turing machines . 2a) biological systems are complex in the way that formalizing them is intractable 2/9.
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@shaananc
Shaanan Cohney
2 months
Reading by @yoginho I was unhappy with its critique of computationalism. 🧵1/9.
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@shaananc
Shaanan Cohney
2 months
RT @patio11: The “Huh, that’s weird” from Money Stuff in 2021 becomes the investigation in 2022 becomes the sentence in 2025.
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@shaananc
Shaanan Cohney
3 months
RT @EigenGender: “the levers of power available to the executive branch are complicated to operate and require nontrivial administration ca….
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@shaananc
Shaanan Cohney
3 months
RT @ben_golub: Macroeconomics is the natural predator of foolish regimes.
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@shaananc
Shaanan Cohney
4 months
Not sure if to be depressed or buoyed that my broadway reviews get more reads than my academic papers. Perhaps a career change is in order?.
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@shaananc
Shaanan Cohney
4 months
RT @hlntnr: Great post from Nicholas Carlini on a related theme: ."I have very wide error bars on the potential future of large language mo….
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@shaananc
Shaanan Cohney
4 months
Super thoughtful piece from @daskeel with plenty to hook CS folks too!.
@daskeel
David Skeel @ Penn
4 months
I don't have a view about whether SBF should get a pardon from @realDonaldTrump , and I doubt @Jonathan_Lipson does either, but our article about the FTX bankruptcy is now in print here: Three key takeaways from the piece:.
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@shaananc
Shaanan Cohney
4 months
Life pro-tip for scientists: LLMs are quite good at LaTeX! . Saves me hours and hours of not only debugging, but initial typesetting.
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