IF we were able to detect all nuetrinos how many would we find

?
I get the impression we would find a thick soup all rushing by at near C I expect.
Thinking about nothing I thought about how many (nuetrinoes) you could observe on an almost infinite number of tradjectories and it would seem reasonable to think there are a few...same for HB really but just because we cant observe them takes away from imagining how full space must be of with each of these or if not those another particle doing the same job.
Even full destrustion of the standard model will still leave that fact remaining..
How does a nuetrino interact with matter?I will look it up.
alex

