Posted: Jun 04, 2011 3:00 pm
by Evolving
Twistor: yes, that does seem to be the key: you do a "weak measurement", meaning you measure something else, after the event, but influenced by the event, and repeat that many times; and then you work backwards to determine what, on average, the event looked like. Since particles are only clouds of probability, there is no difficulty, in principle, in calculating averages over those probabilities.

But if that's all it is, I don't see what the fuss is about!

Clearly I'm missing something.