noun \i-ˈfe-mər-ə, -ˈfem-rə\
something of no lasting significance; lasting a very short time; short-lived; transitory
transitory written and printed matter not intended to be retained or preserved
paper items (as posters, broadsides, and tickets) that were originally meant to be discarded after use but have since become collectibles
Ephemera is the plural form of the Greek word ephemeron which means something that lasts only a very short time
In the grand scheme of things, everything is ephemeral.