How could we go about making a 3D version of this? I had a distinct feeling of travelling a galaxy using this. It could be awesome to actually be sitting in a 'spaceship' (knowledgeship?) and travelling the paths between these papers
Yes, both tSNE and force-directed layouts can do 3D as well as 2D. The following link goes to a "spaceship" force-directed visualisation of Python Github projects, the same author has used his engine for other visualisations too.
