COVID-19 vaccine requirements have generated significant debate. Here, we argue that, on the evidence available, such policies should have recognised proof of natural immunity as a sufficient basis for exemption to vaccination requirements. We begin by distinguishing our argument from two implausible claims about natural immunity: natural immunity is superior to ‘artificial’ vaccine-induced immunity simply because it is ‘natural’ and it is better to acquire immunity through natural infection than via vaccination. We then briefly survey the evidence base for the (...) comparison between naturally acquired immunity and vaccine-induced immunity. While we clearly cannot settle the scientific debates on this point, we suggest that we lack clear and convincing scientific evidence that vaccine-induced immunity has a significantly higher protective effect than natural immunity. Since vaccine requirements represent a substantial infringement of individual liberty, as well as imposing other significant costs, they can only be justified if they are necessary for achieving a proportionate public health benefit. Without compelling evidence for the superiority of vaccine-induced immunity, it cannot be deemed necessary to require vaccination for those with natural immunity. Subjecting them to vaccine mandates is therefore not justified. We conclude by defending the standard of proof that this argument from necessity invokes, and address other pragmatic and practical considerations that may speak against natural immunity exemptions. There are no data in this work. (shrink)

Journal of Political Philosophy, EarlyView.

Vol. 7, n. 2, December 2023 (special issue).

We would like to thank each of the commentators on our feature article for their thoughtful engagement with our arguments. All the commentaries raise important questions about our proposed justification for natural immunity exemptions to COVID-19 vaccine mandates. Thankfully, for some of the points raised, we can simply signal our agreement. For instance, Reiss is correct to highlight that our article did not address the important US-centric considerations she helpfully raises and fruitfully discusses. We also agree with Williams about the (...) need to provide a clear rationale for mandates, and to obtain different kinds of data in support of possible policies.Unfortunately, we lack the space to engage with every one of the more critical comments raised in this rich set of commentaries; as such, in this response, we shall focus on a discussion of hybrid immunity, which underlies a number of different arguments evident in the commentaries, before concluding with some reflections responding to Lipsitch’s concern about the appropriate standard of proof in this context. (shrink)

Both Carnap and Quine made significant contributions to the philosophy of mathematics despite their diversedviews. Carnap endorsed the dichotomy between analytic and synthetic knowledge and classified certainmathematical questions as internal questions appealing to logic and convention. On the contrary, Quine wasopposed to the analytic-synthetic distinction and promoted a holistic view of scientific inquiry. The purpose of thispaper is to argue that in light of the recent advancement of experimental mathematics such as Monte Carlosimulations, limiting mathematical inquiry to the domain of (...) logic is unjustified. Robustness studies implemented inMonte Carlo Studies demonstrate that mathematics is on par with other experimental-based sciences. (shrink)

C. H. Whiteley; I—The Presidential Address*: Confirmation, Proceedings of the Aristotelian Society, Volume 74, Issue 1, 1 June 1974, Pages 1–14, https://doi.org.

It is traditionally believed that cerebral activation (the presence of low voltage fast electrical activity in the neocortex and rhythmical slow activity in the hippocampus) is correlated with arousal, while deactivation (the presence of large amplitude irregular slow waves or spindles in both the neocortex and the hippocampus) is correlated with sleep or coma. However, since there are many exceptions, these generalizations have only limited validity. Activated patterns occur in normal sleep (active or paradoxical sleep) and during states of anesthesia (...) and coma. Deactivated patterns occur, at times, during normal waking, or during behavior in awake animals treated with atropinic drugs. Also, the fact that patterns characteristic of sleep, arousal, and waking behavior continue in decorticate animals indicates that reticulo-cortical mechanisms are not essential for these aspects of behavior. (shrink)

‘Vergil lässt keinen Zweifel darüber, dass in Wahrheit das Fatum nichts anderes ist als des höchsten Gottes Wille.’ Thus Heinze, apparently following an observation by Seruius auctus, and in turn generally followed by scholars who have subsequently considered the nature of the fata in the Aeneid. But questions concerning the interpretation of the Aeneid are rarely simple; and the question of Jupiter's relationship to the fata may repay further enquiry.

After a discussion of the possible connections between quantum mechanics and consciousness, and an examination of the circumstances under which some properties of a macroscopic system may be described by a quantum mechanical wave function, we propose three types of experiments in which one may search for the possible existence of quantal interference in mental events.

Journal of Political Philosophy, EarlyView.