Eventually, I decided that thinking was not getting me very far and it was time to try building.
Using Unix is the computing equivalent of listening only to music by David Cassidy.
Such is modern computing: everything simple is made too complicated because it's easy to fiddle with; everything complicated stays complicated because it's hard to fix.
When there is no type hierarchy you don't have to manage the type hierarchy.
Not only is UNIX dead, it's starting to smell really bad.
A smart terminal is not a smartass terminal, but rather a terminal you can educate.