A decade ago I would have agreed with you. But then I discovered the topic of five-symmetries and my absolute favorite non-toxic non-stick pans are coated with that alloy (not long ago deemed impossible) that has the five way symmetry.
So the practical applications are not far behind for these "only 2D" crystals.
https://www.technologyreview.com/2011/10/12/190784/the-quasi... says "They closed the production line because they had a few problems in the reaction of the coating with salt. If people cook with a lot of salt it will etch the quasicrystalline coating. People didn’t like it, so they did not continue."
I see comments about Cybernox from 2001, so the patents might've expired by now.
Boeing cannot make things that fly no more. So now as a lawyer run entity will try to redefine the concept of flying to, riffing on Douglas Adams line on, constantly falling and mostly missing hitting the ground.
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