The brain struggling to understand the brain is society trying to explain itself.

We remain of the view that in many areas of research we are still reliant on primates to achieve our goals for improving human health

[monkeys] are used only when no other species and no alternatice approach can provide the answers to questions about such conditions as Alzhemers, stroke, Parkinson's, spinal injury, hormone disorders, and vaccines for HIV

If the cells and fibres in one human brain were all stretched out end to end, they would certainly reach to the moon and back. Yet the fact that they are not arranged end to end enabled man to go there himself. The astonishing tangle within our heads makes us what we are.