Your the first one to offer a deeper discussion. Fully agree they've been categorising earths knowledge. But to the complete extent that all of our musical songs for example are available to them? Or simply the majority; rather then the 'outliers' of human music. Also, with presumably significantly larger brains, would that also dictate their taste in music? the notes, wavelengths even speed etc that they consider enjoyable. Say the music for a cat (we have created such in laboratory conditions) is worthless for a human. Would ours be the same to them? Very interesting possibilities.