Decision Theory

What does /prog/ think about decision theory, and this years new advances in the field, including Timeless Decision Theory and Anthropic Decision Theory?

http://arxiv.org/abs/1110.6437
http://lesswrong.com/lw/891/anthropic_decision_theory_i_sleeping_beauty_and/
http://lesswrong.com/lw/15z/ingredients_of_timeless_decision_theory/

>>3
Betrayers were always hated. If he betrayed his own religion, nothing will stop him from betraying you.