Indeed. As Clark always points out, the brain is three pounds of meat trapped in a black box made out of bone, given a few wires to the outside. A logically n

Indeed. As Clark always points out, the brain is three pounds of meat trapped in a black box made out of bone, given a few wires to the outside. A logically necessary part of its job is figuring out how to extend its reach outside the skull and entangle itself usefully with the inward-facing and outward-facing faculties of the body, and thence, via those outward-facing faculties (ie: motor systems in your arms or whatnot), with other stuff in the external world (not so different, since it's all outside the black box of bone, is it?) that can be organismically valuable, like a bicycle.