Caucus me sideways

I'm fascinated by this whole "caucus" process, I haven't thought much about it until this election cycle - I'm not sure why! Seems more interesting than an election. In Oregon, we used to "go to the polls" to fill out our ballots - at least you would see a few neighbors there and feel like you were participating. NOW we mail in or drop off our ballots that we completed at home. Some of us hand them off trustingly to strange volunteers.