The first time a machine made something beautiful, nobody could agree on whether it counted. That argument is still going, and somebody has now built a museum around it. Inside Frank Gehry's building downtown, the inaugural exhibition hands the galleries over to the intelligence already embedded in nature — projections, soundscapes and installations arranged so the line between what was designed and what was grown becomes genuinely hard to locate. Arup engineered the space, the same firm behind the Sydney Opera House, and it shows: the rooms behave more like ecosystems than like galleries. You will not leave neutral. Either the work strikes you as profound or it unsettles you badly, and both reactions are a correct use of the place. Open most days, closed Mondays, on South Grand. Go with the person who will argue the opposite position all the way back to the car.