One recently popular way to characterise strong emergence is to say that emergent entities possess novel causal powers. However, there is little agreement concerning the nature of powers. One controversy involves whether powers are single- or multi-track; that is, whether each power has only one manifestation type, or whether a single power can be directed towards a number of distinct manifestations. Another concerns how powers operate: whether a lone power manifests when triggered by the presence of a suitable stimulus, or (...) whether powers operate mutually such that several powers must ‘work together’ to bring about a particular manifestation. This paper examines how these distinctions—which can be cross-combined to frame four distinct accounts of the nature of powers—bear on the debate between emergentists and reductionists. (shrink)

Strong emergentism is the position that certain higher-level properties display a kind of metaphysical autonomy from the lower-level properties in which they are grounded. The prospect of collapse is a problem for strong emergentism. According to those who press the collapse problem any purportedly strongly emergent feature inheres in the emergence base and so is not genuinely autonomous from that base. Umut Baysan and Jessica Wilson argue that power emergentism avoids the collapse problem. In this paper, I challenge the claim (...) that power emergentism avoids the collapse problem and argue for explanatory emergentism in its place. (shrink)

In a recent exchange in this journal, I argue that accounts of emergence face the collapse problem, and I defend an explanatory approach to emergence as a solution to this problem. Alexander Skiles objects to my account, and proposes an alternative solution to the collapse problem. In this discussion note I take up this conversation, defending the explanatory account of emergence against Skiles’ critique, and arguing that his alternative approach fails to solve the collapse problem.

Oppression is a form of injustice that occurs when one social group is subordinated while another is privileged, and oppression is maintained by a variety of different mechanisms including social norms, stereotypes, and institutional rules. A key feature of oppression is that it is perpetrated by and affects social groups. In this article I show that because of the central role that groups play in theories of oppression, those theories face significant, and heretofore mostly unrecognized, metaphysical problems. I then identify (...) resources from analytic metaphysics that can be used to address these problems. I show that, although we should not be pessimistic about the prospects for a viable theory of oppression, it will take serious metaphysical work to develop a plausible ontology of oppression, and existing theories have for the most part failed to respond to this challenge. (shrink)

Artificial general intelligence is not a new notion, but it has certainly been gaining traction in recent years, and academic as well as industry resources are redirected to research in AGI. The main reason for this is that current AI techniques are limited as they are designed to operate in specific problem-domains, following meticulous preparation. These systems cannot operate in an unknown environment or under conditions of uncertainty, reuse knowledge gained in another problem domain, or autonomously learn and understand the (...) problem-domain. We shall call AI systems capable of such feats artificial general intelligent systems. The three tasks of this paper are to provide a working definition of the term AGI, examine the “missing G”, i.e., the set of abilities that current AI systems lack and whose implementation will result in a basic AGI system, and consider different approaches, including a hybrid one, to a comprehensive solution for an AGI. (shrink)

Contrasting accounts of physicalism and strong emergentism face two problems. According to the neutrality problem, contrasting supervenience-based formulations of these positions cannot be neutral with respect to certain unrelated metaphysical commitments. According to the collapse problem, emergent properties can be accounted for using an appropriately expansive physical ontology, rendering strong emergentism metaphysically suspect. I argue that both these problems can be solved with a principled distinction between emergent causal laws and physical laws. I propose such a distinction based on a (...) finite discontinuity in the behavior of fundamental physical constituents as a function of complexity. (shrink)

Some claim that the notion of strong emergence as involving ontological or causal novelty makes no sense, on grounds that any purportedly strongly emergent features or associated powers 'collapse', one way or another, into the lower-level base features upon which they depend. Here we argue that there are several independently motivated and defensible means of preventing the collapse of strongly emergent features or powers into their lower-level bases, as directed against a conception of strongly emergent features as having fundamentally novel (...) powers. After introducing the project (Section 1), we motivate and present the powers-based account (Section 2); we then canvass the two main versions of the collapse objection, show how these apply to the powers-based account, and problematize certain strategies of response (Section 3); we then present and defend four better strategies of response (Section 4). (shrink)