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Comment by guidopallemans

11 hours ago

Neutrino detectors are essential in receiving communication from other galaxies.

That doesn't make any sense. Photons would work much better.

  • Photons work better for driving a car too but being able to hear is still quite useful.

    In other words: we already have lots of things that measure photons. You see things on two totally different media it's a lot more compelling than just one.

    • That may be the case, but it doesn't explain why neutrinos would be essential for intergalactic communication. Maybe the person I was responding to didn't realize neutrinos travel very close to the speed of light, not infinitely fast?

      3 replies →

    • Neutrinos are not an analog to sound in the point you are trying to make. They are many orders of magnitude more weakly interacting and much, much difficult to measure.