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Eliminative Materialism (Stanford Encyclopedia of Philosophy)

In principle, anyone denying the existence of some type of thing is an eliminativist with regard to that type of thing. Thus, there have been a number of eliminativists about different aspects of human nature in the history of philosophy. For example, hard determinists like Holbach (1770) are eliminativists with regard to free will because they claim there is no dimension of human psychology that corresponds to our commonsense notion of freedom. Similarly, by denying that there is an ego or persisting subject of experience, Hume (1739) was arguably an eliminativist about the self. Reductive materialists can be viewed as eliminativists with respect to an immaterial soul.

Nevertheless, contemporary eliminative materialism—the sort of eliminativism that denies the existence of specific types of mental states—is a relatively new theory with a very short history. The term was first introduced by James Cornman in a 1968 article entitled “On the Elimination of ‘Sensations’ and Sensations” (Cornman, 1968). However, the basic idea goes back at least as far as C.D. Broad’s classic, The Mind and its Place in Nature (Broad, 1925). Here Broad discusses, and quickly rejects, a type of “pure materialism” that treats mental states as attributes that apply to nothing in the world (pp. 607–611). Like many future writers (see section 4.1 below), Broad argued that such a view is self-contradictory since it (presumably) presupposes the reality of misjudgments which are themselves a type of mental state.

Apart from Broad’s discussion, the main roots of eliminative materialism can be found in the writings of a number of mid-20th century philosophers, most notably Wilfred Sellars, W.V.O. Quine, Paul Feyerabend, and Richard Rorty. In his important 1956 article, “Empiricism and the Philosophy of Mind”, Sellars introduced the idea that our conception of mentality may be derived not from direct access to the inner workings of our own minds, but instead from a primitive theoretical framework that we inherit from our culture. While Sellars himself regarded this theoretical framework as empirically correct, his claim that our conception of the mind is theory-based, and at least in principle falsifiable, would be influential to later supporters of eliminativism.

Derivation of functional retinal endothelial cells from human pluripotent stem cells for therapeutics and modelling

Treatment of induced pluripotent stem cells with Norrin and vitronectin, and subsequent cell sorting and maturation, generates retinal-like endothelial cells that can regenerate retinal vasculature in an oxygen-induced retinopathy mouse and recapitulate enhanced inner blood–retinal barrier properties when co-cultured with retinal-like pericytes.

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Transhumanist Anders Sandberg: Embrace Strangeness

“That which does not kill us only makes us stranger.”

14 years ago, I sat down with Dr. Anders Sandberg, computational neuroscientist and research fellow at Oxford’s Future of Humanity Institute, for his second appearance on my podcast. His twist on Nietzsche has stayed with me ever since.

This was 2012. Before ChatGPT, before CRISPR babies, before Neuralink implants in human skulls. And yet listen to what we covered:

The ethics of transhumanism and the limits of being human The Epic of Gilgamesh and humanity’s oldest obsession: immortality Enhancement arms-races and the risk of conflict between transhumanists and neo-luddites Hive-minds, distributed intelligence, and whether the Borg should scare us Mind uploading and what survives when the body doesn’t.

What strikes me now, rewatching it, is how little the fundamental questions have changed. The technology raced ahead. The philosophy is still catching up.

Anders argued that embracing strangeness is not a bug of the human future; it’s the feature. The question was never whether we would change. It’s whether we will change wisely.

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