A recent criticism by Kunstatter et al. [Phys. Lett. A 384, 126686 (2020)] of a quantum setup violating the pigeon counting principle [Aharonov et al. PNAS 113, 532 (2016)] is refuted. The quantum nature of the violation of the pigeonhole principle with pre- and postselection is clarified.
Y. Aharonov, S. Bagchi, J. Dressel, G. Reznik, M. Ridley, and L. Vaidman. Failed attempt to escape from the quantum pigeon conundrum. Phys. Lett. A, 399:127287, 2021. https://doi.org/10.1016/j.physleta.2021.127287
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