On Fri, 19 Nov 2004 04:21:27 GMT, "Rob Dekker" <rob@verific.com>
wrote:

Exactly. That is a second scenario for SETI. Currently however, we are not capable
of proving/disproving an earth-like civilisation around Alpha Centauri, based on
radio/TV/radar broadcast signals alone. We need much bigger antenna's for that,
and a thorough sustained detection program over a wide spectrum.

I believe that "bigger" antennas are not the solution, "better"
antennas are! Also "better" places to look might help too. As Science
evolves we will discover and use both.