Supercomputer

Some good insights on the earlier history of the industry at: The Supermen: The Story of Seymour Cray by Charles J. Murray (1997).

First publicly reached by Frontier.

The "exascale hypothesis" is a name made up by Ciro Santilli to refer to the hypothesis that the real-time human brain simulation becomes possible at exascale computing.

It is a simple extrapolation from the number of synapses in the human brain ($10^{15}$) times the number of times each neuron fires per second.