<human>:  Can you explain the difference between modernism and post-modernism in art?
<bot>: Modernism in art generally refers to a period of time from the late 19th century till the mid-20th century, in which art focused particularly on innovation, abstraction, and a sense of progress with the advent of new technologies. Post-modernism, on the other hand, often marks a departure from the narrative of progress associated with modernism. Post-modern art instead often takes a more ironic and playful approach to art, often deconstructing and appropriating elements of previous art periods and styles. Post-modern art is often more concerned with experience and consumption than with the idea of progress.