At least one of Putnam’s changes is a bit of a tricky case; he’s famous for being a co-author of the early pro-reductionist essay “Unity of Science as a Working Hypothesis,” and for later being one of the most prominent anti-reductionists. However, I have heard that the other co-author of that paper, Paul Oppenheim, paid Putnam (who was then just starting out and so not in the greatest financial shape) to help him write a paper advancing his own views. I’ve also heard that Putnam was not the only young scholar Oppenheim did this with. All of Oppenheim’s well-known publications are co-authored, and I’ve actually heard that they all involved similar arrangements, but when I heard this story Putnam was cited as the instance my (highly trustworthy) source knew for certain (my source claimed to have heard this from Putnam himself, and is someone Putnam plausibly might have told this to).
At least one of Putnam’s changes is a bit of a tricky case; he’s famous for being a co-author of the early pro-reductionist essay “Unity of Science as a Working Hypothesis,” and for later being one of the most prominent anti-reductionists. However, I have heard that the other co-author of that paper, Paul Oppenheim, paid Putnam (who was then just starting out and so not in the greatest financial shape) to help him write a paper advancing his own views. I’ve also heard that Putnam was not the only young scholar Oppenheim did this with. All of Oppenheim’s well-known publications are co-authored, and I’ve actually heard that they all involved similar arrangements, but when I heard this story Putnam was cited as the instance my (highly trustworthy) source knew for certain (my source claimed to have heard this from Putnam himself, and is someone Putnam plausibly might have told this to).