I remember a few years ago when there was some research group that was able to take a picture of a black hole. It involved lots of complicated interpretation of data.
As an extra sanity check, they had two teams working in isolation interpreting this data and constructing the image. If the end result was more or less the same, it’s a good check that it was correct.
Did the teams know that there was another team working on the same thing? I wonder how that affects working of both teams... On the other hand, not telling the teams would erode the trust that the teams have in management.
Maybe they needed two teams to independently try to decode an old tape of random numbers from a radio space telescope that turned out to be an extraterrestrial transmission, like a neutrino signal from the Canis Minor constellation or something. Happens all the time.
