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Thiago F. A. França

@thiago-franca

Professor of Physiology at UFFS in Brazil. Interested in integrative physiology, neuroscience, and psychobiology. Substack (em português): https://thiagofranca.substack.com/

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29.11.2023
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Latest posts by Thiago F. A. França @thiago-franca

Maybe Dayan's "Twenty-Five Lessons from Computational Neuromodulation"?

01.03.2026 17:37 👍 2 🔁 0 💬 0 📌 0

Thanks! And yes, the essay is nice, not only on the confounder issues. I think its approach to exercising for health is on point.

23.02.2026 18:28 👍 1 🔁 0 💬 0 📌 0

Do you have a gift link, by any chance?

23.02.2026 18:03 👍 2 🔁 0 💬 1 📌 0

I dislike summary RoB scores in general. They often fail to convey meaningful information. Potential sources of bias assessed by different items usually vary in their potential impact and implications. It makes more sense to identify common risks and assess their potential effects on the results.

14.02.2026 20:55 👍 1 🔁 0 💬 1 📌 0
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Precisamos reformar o ensino superior para a era da inteligência artificial? Que habilidades e conhecimentos passaram a ser necessários, e quais se tornaram obsoletos, com o avanço dos grandes modelos de linguagem?

Precisamos reformar o ensino superior para a era da inteligência artificial?

Spoiler: não.

doi.org/10.64628/ADE...

28.01.2026 16:07 👍 0 🔁 0 💬 0 📌 0

I think most of what we know of the neural mechanisms of behavior points clearly to that. I also don't see clear alternatives

16.01.2026 16:27 👍 1 🔁 0 💬 0 📌 0

In this case the relevant structure is in our body, especially our brain, and while untangling the full causal chain is currently unfeasible for complex behaviors, I don't think most people disagree that the structure is a crucial *part* of the answer for what caused the behavior.

16.01.2026 15:38 👍 1 🔁 0 💬 1 📌 0

I am not sure I understood your point, Vincent.

16.01.2026 15:23 👍 0 🔁 0 💬 1 📌 0

What threat? My point is precisely that your indeterminism framework produces nothing that wasn't already there with determinism. If there is a threat, indeterminism is not its solution.

16.01.2026 15:21 👍 1 🔁 0 💬 0 📌 0

You are implying that emergence of macroscopic control structures is impossible under determinism but becomes possible if we add randomness. I don't see how this is supposed to work. The origins of life remain a mystery in both scenarios.

16.01.2026 15:19 👍 0 🔁 0 💬 0 📌 0

In a sense, maybe. But I think that would be somewhat different from the common use of the feedback loop concept.

16.01.2026 14:25 👍 1 🔁 0 💬 0 📌 0

I got scrambled with the tread function on the comment you replied to, but take a look at my subsequent comments there. But succinctly: entire scientific fields show this could happen - cybernetics, control systems theory, most of physiology. Indeterminism may be true, but is unnecessary for agency.

16.01.2026 14:07 👍 2 🔁 0 💬 1 📌 0

6/ ... it does not really preclude their existence in a deterministic world. As you pointed out, life's structure evolved to partially insulte it from (or even explore) lower level fluctuations. The source of these fluctuations - deterministic or not - seems tangential.

16.01.2026 14:01 👍 0 🔁 0 💬 1 📌 0

5/ What matters is whether higher level/structural constraints on lower levels dynamics are possible, and they are - with or without determinism. So even if you are right about the universe being fundamentally underdetermined, your argument only shows that agents are possible in such universe...

16.01.2026 14:01 👍 1 🔁 0 💬 1 📌 0

4/ I see nothing in determinism that precludes any of this. To give a more biologically relevant example, Brownian motion is consistent with both determinism and true randomness, but in neither case does it preclude cells from applying structural constraints to it and produce controlled behavior.

16.01.2026 14:01 👍 0 🔁 0 💬 1 📌 0

3/ To give a silly example, if the dynamics of an explosion is perfectly determined, you could still build a canon by constraining it. Does a steam engine requires fundamental randomness to work? Do negative feedback loops only produce goal-directed behavior under indeterminism?

16.01.2026 14:01 👍 1 🔁 0 💬 1 📌 0

2/ Let as assume that randomness in the lower levels is actually epistemic - like in classical statistical mechanics, or the kind of apparent randomness we know can emerge from nonlinear deterministic systems. You could still apply higher level constraints to it and build an agent.

16.01.2026 14:01 👍 0 🔁 0 💬 1 📌 0

1/ I agree with your argument in that, assuming ontological randomness at the lower leves, you can build agents through top-down constraints. Were I disagree is I that believe we can get the same result starting from determinism.

16.01.2026 13:54 👍 0 🔁 0 💬 2 📌 0

Yes, fully agree. I think your final remark about whether one could have decided otherwise is particularly on point.

16.01.2026 13:28 👍 1 🔁 0 💬 1 📌 0

And cybernetics and systems control theory provide many examples of sophisticated, goal-directed systems that do not require indeterminism either. This doesn't mean the universe is deterministic, but it shows that if it were, top down causation and agency would still be meaningful constructs.

16.01.2026 12:57 👍 1 🔁 0 💬 1 📌 0

There are also countless examples of devices from everyday life where higher level constraints produce work from a system whose lower level regularities wouldn't do useful work by themselves, and we don't need indeterminacy to explain them. We can certainly understand car engines under determinism.

16.01.2026 12:55 👍 0 🔁 0 💬 1 📌 0

I agree - that is what *agency* is about. But when that agent was built strongly influenced by genes and early environments that they had no control over, any claims of freedom, while still meaningful in my opinion, must be significantly constrained.

16.01.2026 12:42 👍 1 🔁 0 💬 1 📌 0

I may be biased, as I came to neuroscience from physiology, which abounds with mechanisms of regulation/control, often with a cybernetic flavour, that can be (and usually are) conceptualized in a deterministic framework. So I don't see how top down control should be impossible under determinism.

16.01.2026 12:38 👍 2 🔁 0 💬 1 📌 0

3/ What remains is the question of freedom. An agent can act according to its internal structure - in accordance with itself - but this structure emerges shaped (at least in part) by factors outside the agent's control, even if we accept indeterminism. The (in)compatibilism debate remains.

16.01.2026 12:04 👍 5 🔁 0 💬 3 📌 0

2/ But the "causal slack" this indeterminacy is meant to create would also exist in a deterministic universe and could produce agency - and if the argument works with determinism, it is essentially compatibilist.

16.01.2026 12:04 👍 2 🔁 0 💬 2 📌 0

1/ I'm yet to read the paper, but I saw a recent talk from Kevin where he discusses it at length, in the context of his other recent work. I must say it felt like an herculean effort to avoid the label of compatibilist.

16.01.2026 12:04 👍 5 🔁 0 💬 2 📌 0

I don't think this argument makes sense. Determinism does not imply the microscopic world is ordered from the perspective of higer levels, which is what matters for agents. Top-down constraints and control can exist both with determinism and indeterminsm.

16.01.2026 11:36 👍 3 🔁 0 💬 1 📌 0
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Inteligência Artificial no Ensino Superior: Como lidar com o uso dos grandes modelos de linguagem pelos alunos? De que forma professores podem orientar seus alunos a usar os modelos de linguagem de forma a auxiliar, e não a sabotar, o processo de aprendizagem?

open.substack.com/pub/thiagofr...

13.01.2026 15:21 👍 0 🔁 0 💬 0 📌 0
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Precisamos reformar o ensino superior para a era dos grandes modelos de linguagem? Apesar do uso generalizado de chatGPT e seus similares, os conhecimentos e habilidades necessários para excelência na maioria das profissões mudaram pouco ou nada

open.substack.com/pub/thiagofr...

09.01.2026 16:19 👍 0 🔁 0 💬 0 📌 0

Dopamine ≠ pleasure

04.01.2026 23:47 👍 2 🔁 0 💬 0 📌 0