Thank you for your answer, I see the problem. Is the gravitational attraction of a single particle that is observed as one would expect from classical physics (eg Newtonian gravity)? (Has it been proven experimentally?)
Is there any experimental difference in gravitational force for a non-observed particle versus an observed particle in a gravitational field? Basically my question is if they fall with the same acceleration?
The observed particle is observed the entire fall, but both the observed and the...