Some believe that you should deprive certain senses. The real question here is, does the performance have an effect on you? What we’ve learned in this discussion is that it’s different for everybody.

Tim Hecker keeps coming up in this thread, but he has carefully considered these things and the experience of the audience - he talks quite a bit about it in a red bull interview. Fog is an interesting intermediate between clarity and darkness. Since we’re talking about the senses, he’s the only person I know of who has given thought to using perfumes and releasing scents during the show.