ABSTRACT
Buchak challenges both premises. I’ll respond to Buchak’s arguments against each premise, and sketch out an alternative possible response to the Diachronic Challenge.
I’ll also argue that REU theory’s failure to accommodate the STP presents a pragmatic cost to decision theorists who aim to develop simple models of decision-makers. The STP, I claim, is a valuable tool that enables theorists to simplify so-called grand-world decisions into so-called small-world decisions. REU theory is missing this valuable tool.
