Bernard M. Oliver (1916–1995), aka Barney Oliver, was a scientist who made contributions in many fields, including radar, television, and computers.
If interstellar travel is as time- or energy- demanding as the above figures indicate, it is far from obvious what the motive for colonization might be. Use this quote
It would be a pity if, frustrated by the price of travel, we elected to become a society that never made contact, that never gave SETI a fair chance. Use this quote