Don’t use this term, unless you really mean: a mountain of clear data demands that we replace a well-understood and accepted scientific theory with a fundamentally different one that accounts for the newer clear data AND all the old clear data.
Don’t make me stop this car!
If what you mean is: I like looking at things in a new way because I really didn’t like looking at things the old way, regardless of the lack of data supporting this new way and ignoring data that doesn’t really fit the new way – then Do Not Use the phrase ‘Paradigm Shift’ to describe your mood-driven flip-flop. This would mean sociologists, psychiatrists, psychologists, among others, are forbidden the use of this term, as their sciences do not have a body of data, let alone a coherent theory, about which anyone other than members of their own schools agree.
For example, there are around 16 different schools of psychology out there, each one of which claims to have the theory that best explains what makes people tick. Practitioners retreat to incoherence, saying they take a smorgasbord approach, just using whatever they find true from whatever school strikes their fancy. This strategy, while perhaps allowing practitioners to do some good for their patients, ignores the fundamental incompatibility of, say, Freud and Jung and Skinner, in effect admitting that their theories are unconvincing and ultimately trivial – they don’t make a difference in the real world. Therefore, one cannot have a paradigm shift in psychology – what paradigm? Psychological paradigms metastasize, they don’t shift.
Better yet, since so few people have even a faint grasp of what we’re talking about here, how about we just retire the phrase to the ‘once useful, now just a smokescreen’ Hall of Fame?