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“Making up things” is exactly what philosophy is.
It is considered better, more useful, to ensure that what you are making up is logically coherent with some greater whole philosophical stance (an ontology). There can be no creative thinking at all, no philosophizing at all, if there is no “making things up”. The verifying that the made up things are useful is important when not merely telling amusing stories. But every law of physics was merely “made up” before it was tested. And every belief was merely made up before it was accepted.
Philosophy is not merely a series of logic or truth statements. Philosophy is hypotheses (“made up” ideas) being analyzed for acceptance. Science is the same merely with a restriction on what can eventually be accepted. Theologies and superstitions were accepted without the same rigor as Science would (is supposed to) require.
Quantum Physics in “Science” (actually merely pseudo-science) is very much, entirely “made-up superstition”. It is a philosophical proposal, a “theory” concerning an ontology invented out of pure statical mathematics. It is actually incoherent with itself as well as experimental reality, but that doesn’t stop them from selling it in schools as “science” so that they don’t have to call it a “religion” (which it actually is).