Cross-lingual zero-shot transferが一定程度可能そうなのが興味深い。また、「(1) Could different languages benefit from each other by a monolithic framework?」「Yes」や「(2) Why does PolyPrompt work?」「The performance improvement of PolyPrompt mainly comes from the languages of non-Indo-European language families」という議論も面白い。日本語を扱う場合も重要だと思う。