Earlier quoted context omitted.
Star Trek is full of unfortunate, badly executed attempts at what should have been good ideas. Discovering that all the humanoid species in the galaxy are genetically related would be worthy of an entire season, and might actually make the setting a bit more plausible. But it was just sort of ham-handedly dealt with using silly treknobabble and then quickly forgotten about, because heaven forbid anyone take some scie…
I agree. But note that TNG is also one of the best if not the best sci-fi series ever made, science-wise, and it's responsible for bringing up a generation of scientists and engineers. This reflects rather sadly on the general state of science-fiction in TV, though. The demise of Iconians always felt far-fetched to me. They had a portal network spanning a galaxy that could even be used to stage invasions at unexpecti…
Ahem. Babylon 5. ;)