As a design feature, cantilevers can exist for any number of reasons, as rational results of form-making, impressive feats of engineering, or just unnecessary spectacles. Either way, they often result in buildings that appear both heavy and light at the same time and they present safely precarious situations for their inhabitants. The video describes what cantilevers are as well as some of the structural principles which govern their design like tension, compression, moment, and shear. It also goes over some great examples by architects like MVRDV, Rem Koolhaas, Ensemble Studio, and Richard Rogers. Finally, it concludes with appreciation for structural engineers and lists a few of the ones responsible for some of the most daring of delicate dangles.