Just because efforts to contact extraterrestrials to date have proven unsuccessful does not mean they are not out there. In fact, as communications technology develops over time, humans' ability to project messages and to receive them will increase manifold. Extraterrestrial transmissions could well be beaming toward Earth, but humans might simply lack the capacity to receive them. There could be an interplanetary conversation happening right now, and no one would even know (Sagan, 1973). Only by pushing the boundaries of science and of human imagination can such technological improvements arise. The paradigm of exploration must be maintained with the scouring for life amongst the heavens.