Filler Quotient: 2, filler, but an enjoyable episode nevertheless. You can skip this one, but you'd miss out on some fun.
- There's no essential plot or exposition in this episode that renders it unskippable, but it's a decent episode, even though it could have been better.

Problems
- It's mentioned that the asteroid deflector stops the wind and thunder in order to save the tribe. But why would there be wind and thunder in the first place? It's an asteroid impact, not a thunderstorm.
- This episode incorrectly refers to the Vulcan mind meld as a "Vulcan mind fusion."

Factoids
- This episode establishes that sustained flight at warp 9 is very straining for the Enterprise's engines.

Remarkable Scenes
- Spock's rather elementary school explanation of asteroid deflection to McCoy.
- Kirk giving the drowning boy CPR and then being revered as a god for saving him.
- Spock attempting to destroy the asteroid.
- Scotty bemoaning about Spock's heavy demands on the ship's systems.
- Spock continually ignoring McCoy's advice weeks later.
- Spock deciphering the symbols on the alien monument.
- Spock's mind meld with Kirk.
- The death of Kirk's wife.

My Review
The Paradise Syndrome tackles basically the same "captain burnout" issue as Shore Leave except it attempts to do so dramatically rather than comically. The drama is effective, but the episode overall doesn't work as well as its funnier predecessor for a few key reasons.

The most annoying gaffe in the story is pretty much anything that comes out of McCoy's mouth up until close to the end. In the beginning he fails to understand the most elementary concepts about their asteroid deflection mission and Spock is forced to take considerable time in the middle of a crisis situation to explain these basics to him. Then McCoy has the audacity to complain to Spock about failing to destroy the asteroid, putting the ship at risk, and leaving Kirk on the planet despite the fact that 1. McCoy creating delays only made their problems worse and 2. Spock's decision to immediately attempt deflection of the asteroid was the right move. If McCoy had been paying attention he'd know that. Luckily, McCoy swallows his pride and admits that he was wrong late in the episode, but after all that the apology feels somewhat hollow.

Unfortunately as annoying as McCoy was, he was partially right about one thing: why didn't they keep looking for Kirk? Granted McCoy wanted the whole ship to stay and search for Kirk, but there is a middle ground between McCoy's position on the issue and Spock's: they could have simply left a search team on the planet, then immediately warped out of orbit to deflect the asteroid while the search team searched for Kirk. Perhaps Starfleet regulations prohibit such a course of action, or perhaps there was not sufficient time to properly equip a search team, but someone should have mentioned this.

Another point of vagueness was how Spock cracked the language of the obelisk to begin with. The eureka moment is when Spock claims the language is more music than language, but that doesn't really explain anything at all. Musical notation is a form of written language like any other, so since he couldn't know which symbols corresponded to which musical notes, the problem is analogous to not knowing which letters in an alphabet correspond to which phonetic sounds. Thus, I have a hard time believing Spock could have cracked any of that language based solely on what exposition is in the plot. I suppose some universal translator magic could have done most of the work for him once Spock simply asked the computer to translate it as music rather than language, but that seems like a stretch.

And then there's the almost-but-not-quite Hodgkin's Law moment in the teaser. After all the Earth-like planets we've seen by this point it's vaguely ridiculous for the characters to be spouting lines about how incredibly improbable it is for the planet of the week to have flora so closely mirroring Earth's. I groaned when McCoy saw the natives and referred to them as "American Indians" and Spock replied that they were, without wondering even for a moment how Native Americans could have ended up on some random planet far from Earth. As the episode progresses it does offer us a coherent explanation though: the aliens are actually humans descended from Native Americans. They were brought here by an alien race called "The Preservers" ostensibly to save them from extinction.

As McCoy points out, the historical existence of The Preservers goes a long way towards explaining why there are so many human-like races throughout the galaxy. In that sense, this episode joins Return to Tomorrow in rationalizing that unlikely fact of the Star Trek universe. Perhaps many ancient races have seeded humanoids throughout the galaxy. The Preservers went the extra mile though, furnishing our Native American friends with an asteroid deflector! Handy. I was amused that they integrated the technology into their religious superstitions and I enjoyed how Kirk's foggy recollection of his society's technology made him seem godlike to them.

However, there is something of a dark side to that story point as well, as the episode at times verges on racist stereotyping. For starters, the Native Americans are referred to as American Indians and their entire society is portrayed mostly as noble savages while the plot goes out of its way to make Kirk, the white character, seem superior with numerous scenes depicting how the natives are amazed by such simple things as Kirk's improvised lamp or even the construction of his uniform. Even with amnesia Kirk is regarded as godlike for his superior abilities and when the tribe realizes Kirk is not a god, they react violently and irrationally, even killing one of their own. I don't know if the writers meant it to come across this way, but the sheer number of questionably stereotypical details is hard to miss.

That said, sometimes stereotypes can be amusing and the one I'm most fond of is Kirk's machismo womanizing. This time he even got the girl of the week pregnant! Way to slip one past the goalie, Kirk! Indeed, like the pregnancy, the episode has a lot of highly original details. Kirk's amnesia, the asteroid deflection mission, the sheer amount of time covered by the plot, and even the episode's score (for once) were all refreshingly original. Overall if you can withstand the racial stereotypes and McCoy's borderline incompetence, the episode is a fun and refreshing change of pace.