What is the difference between rationality and intelligence?

Or to ask the ques­tion an­other way, is there such a thing as a the­ory of bounded ra­tio­nal­ity, and if so, is it the same thing as a the­ory of gen­eral in­tel­li­gence?

The LW Wiki defines gen­eral in­tel­li­gence as “abil­ity to effi­ciently achieve goals in a wide range of do­mains”, while in­stru­men­tal ra­tio­nal­ity is defined as “the art of choos­ing and im­ple­ment­ing ac­tions that steer the fu­ture to­ward out­comes ranked higher in one’s prefer­ences”. Th­ese defi­ni­tions seem to sug­gest that ra­tio­nal­ity and in­tel­li­gence are fun­da­men­tally the same con­cept.

How­ever, ra­tio­nal­ity and AI have sep­a­rate re­search com­mu­ni­ties. This seems to be mainly for his­tor­i­cal rea­sons, be­cause peo­ple study­ing ra­tio­nal­ity started with the­o­ries of un­bounded ra­tio­nal­ity (i.e., with log­i­cal om­ni­science or ac­cess to un­limited com­put­ing re­sources), whereas AI re­searchers started off try­ing to achieve mod­est goals in nar­row do­mains with very limited com­put­ing re­sources. How­ever ra­tio­nal­ity re­searchers are try­ing to find the­o­ries of bounded ra­tio­nal­ity, while peo­ple work­ing on AI are try­ing to achieve more gen­eral goals with ac­cess to greater amounts of com­put­ing power, so the dis­tinc­tion may dis­ap­pear if the two sides end up meet­ing in the mid­dle.

We also dis­t­in­guish be­tween ra­tio­nal­ity and in­tel­li­gence when talk­ing about hu­mans. I un­der­stand the former as the abil­ity of some­one to over­come var­i­ous bi­ases, which seems to con­sist of a set of skills that can be learned, while the lat­ter is a kind of men­tal fire­power mea­sured by IQ tests. This seems to sug­gest an­other pos­si­bil­ity. Maybe (as Robin Han­son re­cently ar­gued on his blog) there is no such thing as a sim­ple the­ory of how to op­ti­mally achieve ar­bi­trary goals us­ing limited com­put­ing power. In this view, gen­eral in­tel­li­gence re­quires co­op­er­a­tion be­tween many spe­cial­ized mod­ules con­tain­ing do­main spe­cific knowl­edge, so “ra­tio­nal­ity” would just be one mod­ule amongst many, which tries to find and cor­rect sys­tem­atic de­vi­a­tions from ideal (un­bounded) ra­tio­nal­ity caused by the other mod­ules.

I was more con­fused when I started writ­ing this post, but now I seem to have largely an­swered my own ques­tion (mod­ulo the un­cer­tainty about the na­ture of in­tel­li­gence men­tioned above). How­ever I’m still in­ter­ested to know how oth­ers would an­swer it. Do we have the same un­der­stand­ing of what “ra­tio­nal­ity” and “in­tel­li­gence” mean, and know what dis­tinc­tion some­one is try­ing to draw when they use one of these words in­stead of the other?

ETA: To clar­ify, I’m ask­ing about the differ­ence be­tween gen­eral in­tel­li­gence and ra­tio­nal­ity as the­o­ret­i­cal con­cepts that ap­ply to all agents. Hu­man ra­tio­nal­ity vs in­tel­li­gence may give us a clue to that an­swer, but isn’t the main thing that I’m in­ter­ested here.