Malcolm,
I am not merely suggesting it, I am attempting to point-out that the actual facts demand it. Photons travel like phonemes in a sound wave; a distinct, recognizable entity, but one that is only detectable/recognizable, to another entity that knows, a priori, how to properly detect it, in its entirety - all or nothing - just like identifying and catching an actual burglar.
But before you ask me about interference patterns, ask yourself, what insufficient argument ever induced you to believe that such patterns are only caused by interfering waves? It is known, for a fact, that if you merely compute the power spectrum of the Fourier transform of a two-slit (or any other number of slits) geometry, you will obtain the same pattern; So such patterns obviously have nothing to do with physics at all - no waves, or particles, or anything else, need ever travel though any slits, in order to produce such a pattern - because, it is a purely mathematical property of the information content, of the geometry itself, having nothing directly to do with physics, either classical or quantum. In other words, by mistakenly assuming that the information content of such patterns must originate as a property of the things (like waves) passing through the slits, rather than as a mere property of the slits themselves, the true source of the information (and thus the underlying cause for the pattern) has been entirely misinterpreted, just like misinterpreting a sound, as originating from a ventriloquist's dummy, rather than originating from the ventriloquist. Such phenomenon only seem "weird", because the true source (cause) of the information, is being misassociated, with the wrong, causal agent. There are no "quantum agents" in reality. Quantum agents only exist within the minds of physicists, that have come to believe in information-sparse "talking dummies", as information-originating agents, while totally ignoring the nearby, information-packed ventriloquist - the real agent responsible for causing the seemingly weird phenomenon at hand.
Rob McEachern