Idealism and Scepticism: A Reply to Brueckner

Reply to recent scepticism about the foundations of quantum cryptography

The purpose of this note is to refute a critique by Hirota [1] and Yuen [2–9] concerning a basic criterion for secrecy [10, 11], which is widely used in quantum cryptography and, in particular, serves as a basis for modern security proofs of Quantum Key Distribution (QKD). We first explain this criterion and then describe Hirota and Yuen’s critique as well as the error in their argument. Secrec...

A plea for a touch of idealism: reply to P Whitaker.

Whitaker's plea for a 'touch of realism' in discussions of health care allocation introduces a criterion of relevance according to which theoretical conclusions in medical ethics should be relevant to 'events in the real world' (2). Whitaker also argues that Lewis and Charny's (3) proposal to allocate resources on the basis of opinion surveys is not relevant in the real world and that my reply ...

Justifying circumstances and Moore-paradoxical beliefs: a response to Brueckner

Then I am justified in believing the first conjunct. So by (EP) I am justified in believing that I believe that p. But since I am also justified in believing the second conjunct, I am justified in believing that I do not believe that p. I claimed that this is impossible, because anything that justifies me in believing that something is the case renders me unjustified in believing that it is not...

a comparison of teachers and supervisors, with respect to teacher efficacy and reflection

supervisors play an undeniable role in training teachers, before starting their professional experience by preparing them, at the initial years of their teaching by checking their work within the proper framework, and later on during their teaching by assessing their progress. but surprisingly, exploring their attributes, professional demands, and qualifications has remained a neglected theme i...

A Problem in Avicennas View on the Origination of the Soul and a Reply to It