“ True to his particular sense of form, the current installation in Boston resembles an enormous and bizarre parade float trapped in a small building. A chattering, meandering exegesis on the subject of camouflage, it is an unrelenting obstacle course for the mind and body. Because it centers on a visual motif with built-in abstract, decorative and even figurative implications, the piece has a clarity and immediacy that Mr. Hirschhorn’s environments don’t always achieve.”