A question for you this time. This is obviously (well, obviously if you’ve been or have heard about it), a photo of part of “Test Site”, Carsten Höller’s current exhibit at the Tate Modern (some more shots of that to follow.

But here’s my question: what is this photo about? (As is often the case, there’s a clue in the title.) What was going through my head when I took it, what ideas am I reaching for here?

It won’t exactly bother me if no-one gets it – while I’m generally trying to say something about the thoughts in my head when I take a photo, that’s mostly because I think I take better photos that way. But I would like to know what other people think about, or think I’m thinking about, when they look at my pictures.