I was wiring a Lightolier recessed light (model 1000AICM) and I noticed that the junction box has three black wires and one neutral. I've never encountered this before. I conjecture the following: the three black wires are actually connected and are there only to facilitate daisy chaining of lights. So if I'm wiring a single light, I should connect hot to any one of the black wires and simply connect the other two together with a small wire nut.
Am I right? If so, why aren't there three neutrals, too?