posted on Feb, 6 2008 @ 09:08 PM
Imagine a civilization. They are not even a Type I
They have only really been able to launch a few rather shaky, or temporary low planet orbit habitats.
They have not solved the problems of interplanetary travel, nor do they have any kind of space-based defense system set up, and certainly no advanced
technology like giga-watt lasers or forcefields.
There may exist war-like or at least imperialistic, full Type I or Type II civilizations out there, say within a 50-100 light year radius.
Should this infant, not even space-faring civilization risk calling them out?
Would they not be better served to wait until they are a full Type I, and able to easily journey at least to near-by planets in their own solar system
and have terraformed one other planet and set up a self-sustaining base in case of comet or meteor catastrophy?
I think they would be wise to wait until they are more robust, at least capable of minimal defense of the home world before inviting anyone here.
OTOH, if there are no other Type I or II civs out there within 100-500 light year radius, and any that might exist can only send or receive normal
radio communications and can't visit us, what's the point? We and they will all be long gone before even the first message gets out there.
It's sort of a paradox. Should we have sent primitive probes like Voyager out when it's fairly obvious that before they get too far we may develop
technology (say in 100-200 years) that will allow us to zoom out past them in some kind of FTL ships? Likewise, by the time any signals get to 100-500
light years, we should have developed more advanced means to signal.