I'm a newb so forgive me if this question is ridiculous. In theory(cuz we have no idea of really knowing) how many neutrinos are traveling through the earth at any given time. Or better yet, how many are traveling through lets say a 1 m x 1m square in any arbitrary position on earth. I'm not really looking for a number, but maybe a general order of magnitude. Like are neutrinos coming from all over the universe and passing through us or are they relatively rare?