No. 47: Sep-Oct 1986
"The human brain probably contains more than 1014 synapses, and there are simply not enough genes to account for this complexity." ...."Neuroscientists at a recent meeting highlighted how extragenetic factors -- including neuronal activity, contact with other cells, radiation, and chemical factors -- influence brain circuitry, especially during development."
In computer terms, our brains are constantly reprogramming themselves in response to internal and external forces.
(Barnes, Deborah M.; "Brain Architecture: Beyond Genes," Science, 233: 155, 1986.)
Comment. Musing in a Lamarckian way, can the brain, as reprogrammed by external influences, ever feed back information to the genes?