Radical Optimism is a presentation on reason-based optimism about all of life:
Radical Optimism 2018 Presentation
Radical Optimism 2014 Presentation
Linux Core Dumps is presentation given at San Diego Toorcon 2015: Linux Core Dumps Presentation
Compiling from source is a presentation on compiling software from source code given to a Bitcoin Meetup in San Diego in August 2014: Compiling From Source Presentation.