[throwaway892238]

Hickey's definition of simple is wrong. It's not the opposite of complex at all. They are not opposites, nor mutually exclusive.

  - Easy is when something does not require much effort.
  - Simple means the least complex it can be and still work.
  - Complex means there are lots of components.

These are all quite different concepts:

  - Easy is a concept that distinguishes the amount of work needed to use a solution
  - Simple is a concept that distinguishes whether or not there is an excess number of interacting properties in a system
  - Complex is a concept describing the quality of having a number of interacting properties in a system

Hickey's talk is useful in terms of thinking about software, but it also contains many over-generalizations which are incorrect and lead to incorrect thinking about things that aren't software. (Even some of his declarations about software are wrong)

"Deep", in the context of software complexity, probably only makes sense in terms of describing the number of layers involved in a piece of technology. You could make something have many layers, and it could still be simple, or be complex, or easy.