Modern and Modernity

What is Modern? How do we use this word? Why does it matter? How can we reconcile the PostModern? The MetaModern? Is this even a valid use of language? Can we just cram qualifiers on to a word like modern to create something meaningful? Animation by Yana Petkova - music by Rizzi - editing done by Michál José ... https://www.youtube.com/watch?v=mYUNHl5sz3Y