>the odds some unknown neutrino beam source appeared in direct opposition to the one you knew about are very slim. //
Look any direction in the night sky. Do you see a star. The odds of not seeing a star in the direction you're looking are far greater than the odds that you don't have neutrinos coming from that direction.
You can't shield against neutrinos, you can't currently detect a neutrinos position at two points in spacetime. Haven't yet read the details about this if they repeated several times with the same result then it looks interesting - have you a link to their paper (to save me looking!) thanks.
My first thought was that I wonder if this might be a simple case of super-luminal group velocities or something similar.
Look any direction in the night sky. Do you see a star. The odds of not seeing a star in the direction you're looking are far greater than the odds that you don't have neutrinos coming from that direction.
You can't shield against neutrinos, you can't currently detect a neutrinos position at two points in spacetime. Haven't yet read the details about this if they repeated several times with the same result then it looks interesting - have you a link to their paper (to save me looking!) thanks.
My first thought was that I wonder if this might be a simple case of super-luminal group velocities or something similar.