Using this for a space elevator isn't the best use for this. If these fibers are flexible enough, you could weave them into flexible body armor. Imagine light weight "kitchen" gloves that you can't cut through even with the sharpest knife. Shark protection (but not against lasers...yet). These fibers could replace carbon fiber in high strength areas. Have short enough fibers and use them for 3D printing. They are already using carbon fiber in 3D printers, this could replace it for extreme strength parts. If cheap enough, this could replace carbon fiber in safety situations (racing, boating, aircraft). Now imagine a crash at a race, except this time, the body deforms, but does not disintegrate. I think this is a major announcement in materials science, and I'm curious just how many other areas this could advance.