Not necessarily, I feel that people are more eager to make things into memes than in the past. So there is a greater quantity of memes, but few posses the staying power of older memes. Notable examples of long lasting modern memes include Drake, Harambe and sans. So whilst the majority of memes have a short life cycle, it is mostly due to these memes being of a lower qaulity.

The og Papa John got outted, its Papa Stevie runs the place now

It's been out for over a month, anyone who actually cared about having it "spoiled" should have seen it by now.

We don't deserve Sky Bison

p e r r y !

And Jason Momoa

Meir Automalabama

It's an autocorrect you unassuming asswipe

The monotry value of total profits excluding wages proportional to amount of total work done over the period of which they worked.