Our understanding of science changes, and humans are fallible.
"Heavier-than-air flying machines are impossible." - Lord Kelvin,
president, Royal Society, 1895.
"There is nothing new to be discovered in physics now. All that remains
is more and more precise measurement" - Lord Kelvin.
"Flight by machines heavier than air is unpractical and insignificant,
if not utterly impossible." - Simon Newcomb, 1902.
"Space travel is bunk" -Sir Harold Spencer Jones, Astronomer Royal of
Britain, 1957, two weeks before the launch of Sputnik
"Louis Pasteur's theory of germs is ridiculous fiction." - Pierre
Pachet, Professor of Physiology at Toulouse, 1872.
"The abdomen, the chest, and the brain will forever be shut from the
intrusion of the wise and humane surgeon." - Sir John Eric Ericksen,
British surgeon, appointed Surgeon-Extraordinary to Queen Victoria
1873.
"Such startling announcements as these should be deprecated as being
unworthy of science and mischievious to to its true progress" - Sir
William Siemens, 1880, on Edison's announcement of a sucessful light bulb.
"Fooling around with alternating current is just a waste of time. Nobody
will use it, ever." - Thomas Edison, 1889
"It is apparent to me that the possibilities of the aeroplane, which two
or three years ago were thought to hold the solution to the [flying
machine] problem, have been exhausted, and that we must turn elsewhere."
- Thomas Edison, 1895
"Airplanes are interesting toys but of no military value." - Marechal
Ferdinand Foch, Professor of Strategy, Ecole Superieure de Guerre.
"There is not the slightest indication that nuclear energy will ever be
obtainable. It would mean that the atom would have to be shattered at
will." -- Albert Einstein, 1932.
"Computers in the future may weigh no more than 1.5 tons." - Popular
Mechanics, forecasting the relentless march of science, 1949.
"I have traveled the length and breadth of this country and talked
with the best people, and I can assure you that data processing is a
fad that won't last out the year." - The editor in charge of business
books for Prentice Hall, 1957.
"There is practically no chance communications space satellites will be
used to provide better telephone, telegraph, television, or radio
service inside the Unided States." -T. Craven, FCC Commissioner, 1961.
"But what... is it good for?" - Engineer at the Advanced Computing
Systems Division of IBM, 1968, commenting on the microchip.
"There is no reason anyone would want a computer in their home." - Ken
Olson, president, chairman and founder of Digital Equipment Corp.,
1977.
"640K ought to be enough for anybody." - Bill Gates, 1981.