This is a linkpost for http://geosci.uchicago.edu/~kite/doc/von_Neumann_1955.pdf
"The great globe itself" is in a rapidly maturing crisis —a crisis attributable to the fact that the environment in which technological progress must occur has become both undersized and underorganized. To define the crisis with any accuracy, and to explore possibilities of dealing with it, we must not only look at relevant facts, but also engage in some speculation. The process will illuminate some potential technological developments of the next quarter-century.
Added: see orthonormal's comment below for a summary.