Random serious stuff possibly related to AI I've been looking at.
Judea Pearl: Causal Inference in Statistics: An Overview. Pearl's stuff seems to be pretty central to formal causality, and this is reasonably recent.
A Philosophical Treatise of Universal Induction. Solomonoff induction, related to AIXI stuff.
Shane Legg's PhD thesis Machine Super Intelligence
A New Approach to Quantum Logic, via Shane Legg, this is supposedly related to Bayesian inference and how humans do reasoning.
Physics, Topology, Logic and Computation: A Rosetta Stone A generally neat thing about category theory going into everything.
I'm going on holiday tomorrow. What freely downloadable reading do people recommend? I'm after both more serious things related to Less Wrong or SIAI/FHI's mission, or more lightweight stuff that is the sort of thing an LW participant like me would enjoy. Thanks!