The journey from tiny atmospheric vibrations to perceiving something like speech or music is as improbable and absurd as any biological adaptation of the animal kingdom.

The basic, undifferentiated cell functions (including dna encoding etc), while extraordinary, still feel like robust and fairly close to physical-anorganic processes.

Once cells start differentiating and creating these long chains of bizarre mechano-electro-biological contraptions one wonders what sort of weird and wonderfull phase space has been tapped.

I wish there would be more detail about the final neuronal stages, perception of pitch (octaves), timbre, rhythm, direction, volume etc.