Arthur C. Clarke? Tobias Dantzig? Robert Heinlein? Jerome Agel? Harold Faber? Apocryphal?
Quote Investigator: Arthur C. Clarke published at least three different versions of this statement. The earliest match known to QI appeared in his 1962 book “Profiles of the Future” within chapter 2 called “Hazards of Prophecy: The Failure of Imagination”.
Clarke presented a table with two columns labeled “The Unexpected” and “The Expected”. The first column on the right listed unforeseen discoveries such as X-rays, transistors, superconductors, and relativity. The second column on the left listed notions that have been envisioned for hundreds or thousands of years such as flying machines, robots, immortality, invisibility, and telepathy. Boldface added to excerpts by QI:1967 (First publication 1962), Profiles of the Future by Arthur C. Clarke, Chapter 2: Hazards of Prophecy: The Failure of Imagination, Quote Page 20 and 21, Bantam Books, New York. (Verified with … Continue reading
The right-hand list is deliberately provocative; it includes sheer fantasy as well as serious scientific speculation. But the only way of discovering the limits of the possible is to venture a little way past them into the impossible.
Previously, the Quote Investigator examined a thematically related adage: “It always seems impossible until it’s done”. The article about this adage is available here.
Below are selected citations in chronological order.
|↑1||1967 (First publication 1962), Profiles of the Future by Arthur C. Clarke, Chapter 2: Hazards of Prophecy: The Failure of Imagination, Quote Page 20 and 21, Bantam Books, New York. (Verified with scans)|