The chance of receiving a signal from a civilization exactly as advanced as we are should be minuscule. If they were even a little behind us, they would lack the technological capability to communicate with us at all. So the most likely signal would come from a civilization much more advanced.
Carl SaganAbout author
- Author's profession: Scientist, Physicist
- Nationality: american
- Born: November 9, 1934
- Died: December 20, 1996