They have a pretty plausible-sounding (I am not an aerogels expert) synthesis route based on cyclic annealing of graphene flakes, and they have molecular dynam

They have a pretty plausible-sounding (I am not an aerogels expert) synthesis route based on cyclic annealing of graphene flakes, and they have molecular dynamics calculations to back it up. In the open access research paper [0] there's some discussion of the defects that form in the MD simulations, so that's baked into the mechanical property calculations to some extent... I agree that actually synthesizing this stuff still remains a big challenge, but at this point I think it's just engineering. [0] http://advances.sciencemag.org/content/3/1/e1601536.full http://advances.sciencemag.org/content/3/1/e1601536.full