I broadly agree with you, but I think your being a little bit harsh. If the material is sufficiently robust to environmental conditions, then there is room for

I broadly agree with you, but I think your being a little bit harsh. If the material is sufficiently robust to environmental conditions, then there is room for a strong, directionally biased material. It just won't broadly replace steel (or other alloys). It could find useful niche applications. If its environmentally stable. For example, carbon fiber has so many other nice properties that we'll put up with its directional strength and weave it. Really, this isn't a bid to replace steel or al, but a bid to replace carbon fiber.