These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Sequelitis: The Space Odyssey novels arguably decline in quality with each installment. 2061 had many of the same kinds of tiresome scenes about hanging out with celebrities that Rama II did, and 3001 was widely criticized for bringing Frank Poole back from the dead, making the aliens malicious, ripping off the "computer virus" idea from Independence Daynote Not only that, but in the introduction to 3001, Clarke actually cites the arrival of the spaceships in that film as being like Childhoods End, which really is a pretty loose comparison., and being an unusually short novel whose length was padded out by being printed in large type.