Are photos waiting to be discovered?

"This is what I see, and this is what I think is important."

One of the themes I really enjoy making for Darkrooms is the 'Un/Taken' section, where a photographer talks about the photo they did not take.
I’m sure you’ve read them all, but for those who haven’t, here’s your chance to read all 8 episodes of Un/Taken.

I've heard someone once say that the photograph you didn't take is still out there, waiting to be discovered. Well, is that true?

In a literal sense, an untaken photograph cannot be discovered. Once the shutter has not been released, the photo is lost forever. But in a more figurative sense, I think it is possible to say that a photograph not taken is still waiting to be discovered.