New Thinking in Conservation 2024

Workshop on Intervening in Nature, 2023, Catalina Island

Time and the Observer, UC San Diego, 2018

Open-mindedness and Skepticism in Science, UC San Diego, 2017

Time, Physics and Philosophy, UC San Diego, 2012 

PPRG Spring Retreat, James Reserve, April 2009. 

PPRG Spring Retreat, James Reserve, June 2008.

Society for Exact Philosophy Annual Conference, UC San Diego, 2006, organized with Jonathan Cohen. 

Philosophy of Science Workshop, UC San Diego, 2003