This paper is a classic case of assuming the answer, a problem which recurs frequently in papers critical of MOND. The claim here is that any attempt to modify gravity in order to explain flat rotation curves must perforce predict the wrong result for gravitational lensing (a divergent rather than convergent lens). This claim is disputed by Bekenstein. The obvious flaw is that in an attempt to be very general, out the outset Edery makes a very restrictive, and hence specific, assumption. If taken literally, it implies that reality is impossible, since the argument against modified gravity theories also applies against dark matter.

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