You may be taking this a bit too literally. I saw it as a designer's attempt to build marketing for a fictional device that is fun to imagine. If you've ever read science fiction, there's a certain joy in imagining new devices with capabilities that currently seem impossible. Without this sort of
imagination, like the tricorder that you point out, a whole lot of contemporary engineers might have never found this inspiration.
Graphene isn't the best choice, but the point was to illustrate a currently unseen level of tensile strength, not as a blueprint for manufacture. Wouldn't that be a fun device to have?
We tend to ignore humor on HN, but this is one person's imagination at work, and I applaud that.
