" Cruft is forever. If you peel back the layers that have grown on top of other layers, and keep delving, and grep deep enough, you're going to find base code that was written by some Linux geek in the 1980s or something. File system primitives. Memory allocation routines that were made to run on hacked single-core IBM PCs that had never heard of the Internet. "

― Neal Stephenson , Fall or, Dodge in Hell