Another variable in brain function:-http://medicalxpress.com/news/2014-11-mechanisms-mexican-brain-revealed-scientists.html-"Neurons are cells in the brain that communicate chemical and electrical information and they belong to one of two groups- inhibitory or excitatory. While much is known about excitatory neurons, the role of inhibitory neurons is still being debated.-"Inhibitory neurons can vibrate and they are equipped with mechanisms that enable them to persuade networks of other neurons into imitating their vibrations - setting off 'Mexican waves' in the brain. The scientists believe these collective, oscillating vibrations play a key role in cognitive function. Their research sheds light on how inhibitory neurons use different communication processes to excitatory neurons, which share information via an internal pulsing mechanism."-Something a computer cannot do in the same way.