J. Allen Hynek, longtime consultant to the air force’s Project Blue Book, had an expression for this kind of attitude: “It can’t be; therefore, it isn’t.” It is true that the distances of interstellar space are so vast as to make travel appear to be impossible. No person could survive a ten-thousand-year interstellar journey, considering our current technologies.
The most common rejoinder is that perhaps a breakthrough in propulsion technology is possible, and that perhaps we can somehow surpass or bypass the speed-of-light obstacle, like the
Even dismissing breakthroughs in propulsion technology, however, recent developments in just two areas—artificial intelligence and biotechnology—will bring revolutionary developments within the next century. Many in those fields believe it will be possible to create an artificially intelligent organism. Perhaps, having found a twin to Earth somewhere out there, an artificially intelligent organism could make the long journey. Or why even use an organism when one could equip the ship itself with artificial intelligence?
If we can plausibly imagine ourselves finding another planet with features similar to our own, and sending an intelligent probe there, how likely is it that someone else has already done the same to us? There are many unknown variables, to be sure, but the prospect cannot be denied.
This was Condon’s question. After all, the landing of an alien vessel on the White House lawn would settle matters. The question, however, assumes some kind of parity between humans and any others who may arrive. A human scientist studying a band of gorillas would not introduce herself to the dominant male with a view toward establishing diplomatic relations (although she might interact with some or all gorillas in some manner). Perhaps open relations with aliens are not possible, or at least less practical than we typically imagine. Or perhaps the prospect promises too many headaches for them. We just don’t know.
Besides, if one takes seriously the thousands of reports and claims of alien abduction, it appears that aliens have made their presence known. They have done so, however, covertly, in a manner that bypasses all official channels of our civilization—an act of extreme subversion.
The question is valid. There are objects being tested and flown today of staggering technology. The fabled