Modal interpretations take quantum mechanics as a theory which assigns at all times definite values to magnitudes of quantum systems. In the case of single systems, modal interpretations manage to do so without falling prey to the Kochen and Specker no-go theorem, because they assign values only to a limited set of magnitudes. In this paper I present two further no-go theorems which prove that two modal interpretations become nevertheless problematic when applied to more than one system. The first theorem (...) proves that the modal interpretation proposed by Kochen and by Dieks cannot correlate the values simultaneously assigned to three systems. The second and new theorem proves that the atomic modal interpretation proposed by Bacciagaluppi and Dickson and by Dieks cannot correlate the values simultaneously and sequentially assigned to two systems if one assumes that these correlations are uniquely related to the dynamics of the state of the systems. (shrink)

The global workspace architecture is examined from an evolutionary perspective. It is argued that certain aspects of the theory are difficult to account for in terms of a sequence of evolutionary elaborations. These notably include distinct actors and audience members, and the lingua franca by which they communicate. An alternative metaphor of a ‘global arena’ is suggested, along with speculation on how this bottleneck of behavioural competition may have evolved toward a more sophisticated architecture, perhaps even a theatre . . (...) . (shrink)

Rufus of Ephesus (fl.c.a.d.100) wrote a large body of works on a variety of medical topics. Generally speaking, the Arabic tradition is particularly important for the reconstruction of much of his œuvre. In the present article, I am going to present four new fragments of Rufus’On Melancholyand a fragment from an otherwise unknown monographOn Preferring Fresh Poppies. These new fragments provide fascinating new insights into Rufus’ approach to recording case histories.

The modal interpretation of quantum theory ascribes at each instant physical magnitudes with definite values to quantum systems. Starting from certain natural requirements, I determine unique solutions for the evolution of these possessed magnitudes in free systems and in special cases of interacting systems. The evolution is given in terms of transition probabilities that relate the values of the possessed magnitudes at one instant to the values at a second instant. I also determine a joint property ascription to a composite (...) system and its separate subsystems. Finally, I give a proof that the predictions of the modal interpretation with respect to measurement outcomes agree with the predictions of the standard interpretation. (shrink)

From the jumping bean controversy, through his jousts with Malraux, to his charge against Picasso, Roger Caillois's attitude remained the same: a fear of the seductions of misunderstood originality, a condemnation of the fear of influence that characterized the moderns, and praise for imitation, conceived as the only true school of art. Originality, according to the formula he was fond of repeating time and again in the most varied contexts, consists not in refraining from imitating anyone else, but rather in (...) beine inimitable. (shrink)