I read this post with enthusiasm, as one of the myriad of astronomy
enthusiasts and scientists but it the statement fell apart for me with the
following

In other words, with a collection of mirrors, a small laser, and a
computer to run it all, a knowledgeable and entrepreneurial
extraterrestrial could produce detectable signals with only as much
power as a handful of batteries could supply. No mammoth antennas, and
no beefy transmitters are required. The broadcast could be an alien
science fair experiment.

!!! Computer !!!! ---- aaarrrggghhhh

We go all this way to expect other life forms to be "out there" somewhere
and then make a blatant statement as to expect another life form, how ever
intelligent to have a developed a computerised system of types.

In essence we should not expect ET lifeforms to be humanoid or equal to our
intelligent levels.... Or should we ??

Those are the kind that SETI is looking for.