Gluing the tubes together is one of the biggest hurdles, mainly because the individual tubes aren't long enough. If we could make 30cm-1m long tubes (of the str

Gluing the tubes together is one of the biggest hurdles, mainly because the individual tubes aren't long enough. If we could make 30cm-1m long tubes (of the strongest kind) we could do with essentially sparsely interlink the tubes, esentially having the nanotubes become part of the matrix. This would also give us freedom in choosing the rest of the matrix for the other properties needed. So while not exactly nanotube reinforced nanotubes, pretty darn close :)