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Grashtel · #**306** (**permalink**) 20-March-2008, 01:29 PM

Quote:

Originally Posted by RalofTyr

Why would aliens trick us? They just travelled light years across space. Do have any idea how much of a pain in the behind it is to interstellar travel? Just to build the ship, their economy was in ruins, their ecology is in wastes and millions died, just so a few of them can travel to another star system and say, "Hello".

Try keeping track of what is being talked about, this particular sub-thread is about the receipt of a laser communication not of a ship.

Also while building an interstellar ship with current levels of technology would be extremely hard and break the planetary economy there is no reason to assume that aliens would be limited to that (and good reasons to not do so). With tech not much above current through it becomes a hell of a lot easier, self-replicating machinery alone will change the whole economic game making things much more practical for mega-projects like interstellar travel and Dyson swarms (which would also make interstellar travel easy thanks to the superabundance of avalible energy).