It seems like an absolute gap in team strength doesn't mean much in the NBA right now

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The biggest reason why that's the case is,
even if a team is at a disadvantage, if they are
hitting their 3-pointers that day? Then they almost always win.
Since there are so many role players who can sink 3-pointers
at a success rate in the high 30s, it feels like anyone can
flip a game if their shots just start falling. Sometimes, seeing a team
methodically build a 20-point lead through steady makes,
only to have it turn into a one-possession game instantly due to a few
lucky consecutive 3-pointers, feels a bit demoralizing.