maybe it's a breakthrough
Here’s a sign that I’m on the right track. Adapting the thesis to fit the new model has meant me losing about 1000 words, without losing any meaning to what I’m writing, in fact I think it’s clearer. That’s got to be a good sign.
Although the vertices aren’t the same distance apart. That would be impossible since a lot of the triangles are right-angled. Which explains why my 3d model in second life looks very wrong – I was adding identical tetrahedrons to the central tetrahedron and trying to make a cube that way. What a waste of an hour.