I have to admit, if a student had come to me with plans for a one-piece cantilevered chair with a profile this thin, I’d probably try to steer them in a different direction. Pushing limits is one thing, but that doesn’t mean pretending that they don’t exist (and unless you’re going to cast the whole thing out of metal, it’s probably a fantasy). But the 8.0 chair pulls off the fantasy, thanks to a new structural concrete called Ductal. At up to ten times stronger than conventional concrete, Ductal approaches the strength of steel and as the name suggests, it’s also ductile, so it will flex rather than crack – I can admit when I’m wrong.