In this paper, we examine the long-run behavior of regularized, no-regret learning in1 finite games. A well-known result in the field states that the empirical frequencies2 of no-regret play converge to the game's set of coarse correlated equilibria; however,3 our understanding of how the players' actual strategies evolve over time is much4 more limited - and, in many cases, non-existent. This issue is exacerbated by5 a series of recent results showing that only strict Nash equilibria are stable and6 attracting under regularized learning, thus making the relation between learning7 and pointwise solution concepts particularly elusive. In lieu of this, we take a more8 general approach and instead seek to characterize the setwise rationality properties9 of the players' day-to-day play. To that end, we focus on one of the most stringent10 criteria of setwise strategic stability, namely that any unilateral deviation from the11 set in question incurs a cost to the deviator - a property known as closedness under12 better replies (club).

Human commonsense understanding of the physical and social world is organized around intuitive theories. These theories support making causal and moral judgments. When something bad happens, we naturally ask: who did what, and why? A rich literature in cognitive science has studied people's causal and moral intuitions. This work has revealed a number of factors that systematically influence people's judgments, such as the violation of norms and whether the harm is avoidable or inevitable.

Although the mapping between sound and meaning in human language is assumed to be largely arbitrary, research in cognitive science has shown that there are non-trivial correlations between particular sounds and meanings across languages and demographic groups, a phenomenon known as sound symbolism. Among the many dimensions of meaning, sound symbolism is particularly salient and welldemonstrated with regards to cross-modal associations between language and the visual domain. In this work, we address the question of whether sound symbolism is reflected in vision-and-language models such as CLIP and Stable Diffusion. Using zero-shot knowledge probing to investigate the inherent knowledge of these models, we find strong evidence that they do show this pattern, paralleling the well-known kiki-bouba effect in psycholinguistics. Our work provides a novel method for demonstrating sound symbolism and understanding its nature using computational tools. Our code will be made publicly available1.

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