But in all fairness few inventors will tell you their invention is useless. That the guy in the article has apparently re-invented fiberglass construction is not too surprising. Its really cool, you make something out of cardboard, you soak is fiberglass resin (oh I'm sorry a bunch or organic (as in Chemistry) things) and it becomes a rigid structure you can use.

But it is better than an iPhone app that lets destitute people find educational and training opportunities near their location.