Factual error: Picard reaches for the bowl of rotten fruit, winces in pain, and suddenly his fingernails have grown about an inch. This was due to the fruit bowl being inside an area where time was moving much faster. The problem is, in order for his fingernails to grow, blood would have to supply the needed nutrients to his fingers at the accelerated rate. Since his heart is in normal time, being away from the bowl of fruit, there is no way his fingernails could have grown like that - his heart is only supplying a normal-time-continuum's worth of blood.
Suggested correction: This entry conflates rapid growth with sped up time.
Plot hole: During a private conversation with Worf, (the not yet revealed to be clone of) Kahless recounts a time during Worf's childhood when the actual Kahless appeared to Worf in a vision and told him he would do something no other Klingon had ever done. However, it would be impossible for a clone to have such a memory, as his creators would have no knowledge that such a memory even existed, let alone the circumstances and specific content of that vision.
Suggested correction: The implication is that Koroth or one of the other priests knew of Worf's vision. Given the purpose of the temple, and the fact Worf had discussions with Koroth prior to the clone appearing, it is obvious that Worf told either Koroth or one of the other priests the specifics of his vision and that his purpose for being there was he wished to see Kahless again.