This is the on-line first version (unpaginated) of my first publication in quantum mechanics.
Although retrocausality might be involved in QM in a number of ways, the focus here is on the delay-choice arguments popularized by John Archibald Wheeler. There is a common fallacy that is often involved in the interpretation of quantum experiments involving a certain type of separation such as the: double-slit experiments, which-way interferometer experiments, polarization analyzer experiments, Stern-Gerlach experiments, and quantum eraser experiments. The fallacy leads not only to flawed textbook accounts of these experiments but to flawed inferences about retrocausality in the context of delayed choice versions of separation experiments.