```As you may have expected, we find that our photon passes either through loop A
or through loop B, but never through both. In addition, after finding a photon in one
of our QND detectors, we always find a single current pulse in one of our regular
photodetectors. However, it is no longer exclusively detector D2 that creates the
current pulses. After many trials in this experiment, it becomes clear that each QND
detector is triggered with equal probability, and so are the normal photodetectors.
In other words, the interference pattern, where detector D1 always remained dark,
has disappeared!```
