I am arguing against tool-boxism, on the grounds that if it were accepted as true (I don’t think it can actually be true in a meaningful sense) you basically give up on the ability to converge on truth in an objective sense.
You need to distinguish between truth and usefulness. If the justification of using different tools is purely on the basis of efficiency (in the limit, being able to solve a problem at all), then nothing is implied about the ability to converge on truth. Toolbox-ism does not necessarily imply pluralism in the resulting maps. There is also a thing where people advocate the use of multiple theories with different content, leading to an overall pluralism/relativism, but in view of the usefulness/truth distinction that is a different thing.
It seems that those who feel that tool-boxism is false, seem to converge on Bayesianism as a set of principles, not that they are the full story,
If they are not the full story, then you need other tools. You are saying contradictory things. Sometimes you say Bayes is the only tool you need, sometimes you say it can only do one thing.
but as a set of principles with no domain in which they can both be meaniningfully applied and where they give the wrong answer.
Not giving the wrong answer is not a sufficient criterion for giving the right answer. To get the right answer, you need to get the hypothesis that corresponds to reality, somehow, and you need to confirm it. Recall that Bayes does not give you any method for generating hypotheses, let alone one guaranteed to generate the one true on in an acceptable period of time. So Bayes does not guarantee truth—truth as correspondence, that is.
You need to distinguish between truth and usefulness. If the justification of using different tools is purely on the basis of efficiency (in the limit, being able to solve a problem at all), then nothing is implied about the ability to converge on truth. Toolbox-ism does not necessarily imply pluralism in the resulting maps. There is also a thing where people advocate the use of multiple theories with different content, leading to an overall pluralism/relativism, but in view of the usefulness/truth distinction that is a different thing.
If they are not the full story, then you need other tools. You are saying contradictory things. Sometimes you say Bayes is the only tool you need, sometimes you say it can only do one thing.
Not giving the wrong answer is not a sufficient criterion for giving the right answer. To get the right answer, you need to get the hypothesis that corresponds to reality, somehow, and you need to confirm it. Recall that Bayes does not give you any method for generating hypotheses, let alone one guaranteed to generate the one true on in an acceptable period of time. So Bayes does not guarantee truth—truth as correspondence, that is.