[marcosdumay]

Hum... That looks odd because it is. Things do not work this way.

Actually, the reproducibility applies to the hypothesis (conclusion), not to the experiment. It's only that, since the observer is irrelevant, people simplify and call it "reproducing the experiment".

If your experiment depends on the observer, and you get to know that, that dependence will go on the conclusion, and the people reproducing your experiment will expect to see the result your hypothesis say they would, not the same one you got. If you have a correct predicting model, everybody will conclude it's correct.