question.....
1 - If the aliens are younger then us, no communication possible.
2 - If Aliens same as us, too much distance & time too communicate.
3 - If Aliens are much smarter(or older as civilization) maybe they can teach us some form of faster communication, or they're actually here, right now and just don't want to be seen, hey maybe we are ginny pigs to their experiments.
the use of LASER's will come into account when we decide too communicate over long distances