Maybe they got it "in advance"
http://www.theaustralian.com.au/news/health-science/watch-this-space/story-e 6frg8gf-1225710664198 http://www.ufo-blogger.com/2010/09/alien-laser-signal-gliese-581e.html From: Jones Beene <http://en.wikipedia.org/wiki/Gliese_581> http://en.wikipedia.org/wiki/Gliese_581 we should know by 2049, that is: if they got our message . The message was probably simple, something like "42" :-)
