Frankly, I think the pathwai.org taxonomy is far more useful in the long-term even if many of the individual attributes are speculative. Frankly, I'm a little surprised that Deep Mind neglected to cite pathwai.org's research. I'd highly recommend checking it out (though full disclosure, as the author I have my biases.) http://www.pathwai.org/index.html (Desktop only, best at high resolutions)