The characteristic mobility of highland populations in Southeast Asia relied to a large extent on their particular adaption an ecological environment: swidden cultivation tubers mountain slopes. This ecology corresponded cosmologies which potency was limitless, or at least had no fixed and delimited precinct (as did the rice paddies Buddhist realms valleys). Military state building, modern tran...

ion. Such abstraction has played an important role in Yemen's modern socioeconomic development, but is unsustainable and now threatens the country's very existence. I develop the argument in three sections. First, I argue that prior to the advent of large-scale groundwater abstraction, Yemen had over several centuries developed a set of indigenous technologies, political and social arrangements...

Competition has been studied as something to be averted, yet rarely has it been asked what processes may be involved in successful competition. We tested whether more accurate modeling of an adversary can assist competitive success. Pairs played a zero-sum game with no specific skill component over 40 trials. We measured the relative accuracy of the players’ second-order model (i.e., what I thi...