Anything of sufficient complexity that is not understood can be deconstructed to more simple components that can be understood.
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"Not all complex systems can be understood by use of reductionism.
Reductionism has largely influenced the development of science, culminating in its application to molecular biology. An increasing number of novel research findings have, however, shattered this view, showing how the molecular-reductionist approach cannot entirely handle the complexity of biological systems."
@corlin
It does when you start with complex systems.
Reductionism does not imply a single axes of assessment.
And, even if there are exceptions, it is still the norm and worth accepting as a tool to "understand".