Our expert says:
Doesn't it depend ? In some of the movie and game series, making sense of part 4 doesn't necessarily depend on knowing all of parts 1 to 3. In books, it may do so to a greater degree.
But, as others ask, why buy these things out of order ? Start with the first in the series, and if you really don't enjoy it, there's no point in getting the sequels.
I'm not sure I understand how you apply this degree of obsessiveness ( more an obsesive character / personality than a disorder, unless this really keeps you awake at night !) to clothing. Can you not wear a T-shirt until you have every different colour in which it is produced ? What an expensive way of life !
You sound similar to what are called "Completists", such as people who would call themselves opera lovers, who want a copy of EVERY recording ever made of a particular opera, regardless of whether they're any good, and without necessarily listening to them all.
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