Neural reality is much richer, more diverse, with many levels between membranes and brains. A level above membranes lie cells, with their regional specializations of different kinds of membrane. Above cells lie circuits of different kinds of cells. Nor to merely an analogy with computer hardware of recent design. Evolution has, after all, been tinkering around with thinking machines for a lot longer than computer science has.
Brains are the most elegantly organized bundles of matter in the universe.
But certainly more interesting than malignant metaphor and rampant reductionism. A Scenario for Humankind . Powell's Books in Portland lists used copies in their web database.