I stumbled upon this great video from 2014. Joe Armstrong, the creator of the Erlang programming language, talks about the complexity of computer systems today and how to fix them.
I like how he puts it into perspective with comparisons of the number of atoms on Earth and in the Universe.
Another great comparison of combinatorial complexity to the number of atoms in the known Universe, from famed computer scientist Peter Norvig:
On the (Small) Number of Atoms in the Universe