How large bandwidth is needed? We can estimate a lower bound from the bandwidth of speech and body language, which appears to be on the order of 10-100 bits/s. A highest upper bound would be total interconnection at the same signal density as the human mind, or roughly 10^18 bits/s, quite an extreme range. However, the two human hemispheres communicate closely through the corpus callosum normally with no discernible differences; this connection has a theoretical bandwidth on the order of 10^1...
Borg Bandwidth