Somebody Up There Is Watching Us
Sir: Apropos your flying-saucer Essay [Aug. 4], the implication is that most scientists insist that their laws are absolutely valid. Yet even Einstein is now being questioned, and there is uncertainty about Heisenberg's uncertainty principle. As knowledge is gathered, the old "laws" are found more and more to apply only to special cases. Faster-than-light travel will probably be possible when our frame of reference has expanded far enough.
ROBERT P. BURRUSS
Chevy Chase, Md.
Sir: There may be future planes and spaceships that certain people are privileged to...
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