Precise words make communication more efficient. Arguably, software development is about managing conceptual complexity. Simple made easy, by Rich Hickey is a talk that tackles those two topics.
https://www.youtube.com/watch?v=cSwPOpOKr3w
Two takeaways from this talk:

• The differences between simple and easy.
  • Simplicity is an objective measure, and its units are the level of interleaving (of concepts). Simplicity should not be measured by the cardinality, the number of concepts/units.
  • Easiness is a subjective measure, and it is related to how familiar you are with some topic or your past experience.
• We can make things simple with the tools we already have by favoring concepts that make things simpler to reason about, not quicker to write. He recommends:
  • Immutability over mutability.
  • Pure functions over impure ones.
  • And a lot of other ones that I’m still digesting.

See also:

• Talk with slides.
• Transcript with slides.