- "String Theory", ElixirConf 2016. Explains Elixir's "string-y" types, how it implements Unicode support, and how iolists enable efficient web applications.
- "Reimplementing Ruby's Hash", Golden Gate Ruby Conference 2014. An improved version of "Big O in a Homemade Hash". People said and drew nice things.
- "Big O in a Homemade Hash", Mountain West Ruby Conference 2014 - in which I show how to re-build a simple version of Ruby's Hash class from scratch, explain what O(1) performance means, and show how we get it. People said nice things.