The basic concept and setup of Star Trek in general
I’ll refer to TNG since that’s the only series that I have seen extensively (yeah, despite what I’m about to write below) besides the original which I don’t remember much of.
1)All aliens are humanoids (OK, casting and FX constraints; Pass)
2)All non-exotic alien species can communicate with each other; not only that, but English happens to be the lingua franca. What happened to Mandarin, Spanish, Let alone alien languages? (OK, another Pass, but a fundamental suspension of disbelief required).
3)In TNG, they greet each other using ‘Good Morning’ and the like, and use Earth style time (14:30 hours). What meaning does “morning” have on a starship always located in dark space? Why is time measured in hours and days? If someone tries to explain this away using circadian rhythms, that won’t work. The circadian rhythm developed in response to Earth’s environment, mainly light. There was a human experiment conducted in the 70s/80s where subjects were kept in windowless rooms for some time, and their rhythm changed to a cycle of 25 hours with peaks and dips every couple of hours. Of course, even Roddenberry probably saw this, considering the concept of stardate that is used. (OK, a minor quibble considering the other travesties, so a grudging Pass)
4)You sometimes have episodes where some mysterious phenomena occurs, and you see the major characters firmly proclaim that there is no such thing as the ‘supernatural’ or ‘ghosts’, and yet you have ‘the Q’ a “natural” entity which is omnipotent and omniscient, and various other entities that can do various fantastic things. Just what does “supernatural” mean on this show? (No Pass on this one)
5)Seems that there is a universal morality present in the Federation. Sure, there are quirks here and there among species, but the basic foundation seems to be Earth-based Christian-influenced secularized morality. If I may presume that morality of a civilization is shaped by the evolutionary experiences and adaptations, then such a common ground is unlikely, at the very least. (No Pass; seems like a self-affirming strategy of the writers)
6)Art. Music - either classical or “mambo”. Was no music made on Earth between the 20th and 24th century? Most popular music today doesn’t seem to be 16th century music. Forget that, what about rock or pop or electronica? What about television or radio or video games? Is recreation on the 24th century limited to poker games & bar lounges? Holodeck seems limited to serious simulations, for the most part; that too for the senior staff. ((Yeah, yeah, licensing & royalties. Somewhat of a Pass)
7)How does warp travel work? Don’t they ever collide with some objects while travelling at 1000 times the speed of light? (Sure, some technobabble is to the rescue, so Pass).
8)“Prime Directive” - to not interfere with the “natural evolution” of a primitive species (sub-Warp). What’s ‘unnatural’ in this Trek universe? I suspect the PD is meant to prevent inducing huge shocks in the outlooks of primitive cultures, but there’s nothing unnatural about that. (No Pass)
I’m bored now, so no more analysis.
Basically, the concept is only superficially plausible, but it’s average entertainment.