Horrible. They really couldn't have found a better way to ruin the entire show. I was seriously hoping they were gonna answer EVERYTHING. I was waiting so long for everything to come together and all have a logical, meaningful answer. My expectations for the ending of this show were so high. They could have done anything. The island could have been one big UFO or something. The whole thing could have been a virtual reality that was part of some government experiment. Instead, they do this. Pathetic. Just totally pathetic.
I was at least hoping to get one question answered. What is the black smoke? All we know is that it was what Jacob's brother turned into when he threw him into the light. Why is it smoke to begin with? Why does it sound like a whole bunch of mechanical parts? Why was Ben able to see things in his memory when the smoke surrounded him?
You can all come up with your own theories on it, but it just further proves my point. They never answered anything. Instead, they left it all up for the viewer to decide what everything means, which is something I was praying to dear god they wouldn't do.