BY ROBERT E. BARTHOLOMEW
…an extraordinary claim requires extraordinary proof. —popularized by Carl Sagan1
Even though sound is measurable, we tend to experience it as spectral, as something beyond our rational understanding. It is thus the perfect stand-in for a Cold War-style cunning enemy, who is surely out there, doing something, even though we can never seem to pin him down. —Lisa Dierch and Ben Tausig2