[amai]

Every measurement (gravitational, electronic, magnetic etc. ) causes a collapse of the probabilities. This has nothing to do with quantum mechanics. This is simply statistics/math and has nothing to do with physics.

A simple example: As long as one doesn't look at a coin, the probability that it shows head or tail is 50%. After the measurement it "collapses" to 100% for one of the options.

But the "collapse" is only a mathematical "collapse", not a physical one.

Physics only limits how precise and fast your measurement apparatus can be.