Hyperbolic journalism aside, this is certainly an interesting material. Surprisingly, from a cursory literature search, it appears that no one has attempted to perform electronic structure calculations on SmB6, although the compound seems to have only started gathering interest around 2013. DFT of course wouldn't work for something with high electron correlation, but considering the simplicity of the molecule, I imagine QMC could tackle this fairly readily to provide some insight as to what's going on.