Metaphor, fiction and thought

I will set out various un/underdeveloped opportunities for AI, philosophy and metaphor research to interact, with prospects for distinctly new lines of research and approaches to old problems. The opportunities I address in this paper are on the following topics: fiction-based accounts of metaphor, and a potentially resulting radical holism as regards the way metaphorical meaning arises from discourse; an anti-analogy-extension thesis, supporting unlimited non-parallelism between source and target in metaphor; the idea that thought can be metaphorical, and perhaps even more deeply than already mooted; deploying metaphor to solve a difficult problem in propositional attitude theory, which inludes the "meaning intention" problem as a special case; the "cognitive addition" of metaphor in language understanding, possibly leading to radical changes in how one thinks of the semantics even of non-metaphorical sentences.