I do wonder if a stack-based format would be easier for an LLM. Seems like a better fit for the attention mechanism. My suspicion (without having lifted a fin

I do wonder if a stack-based format would be easier for an LLM. Seems like a better fit for the attention mechanism. My suspicion (without having lifted a finger to check) is that it's the closing tags that make the difference for XML. Go stack-based and you can drop the opening tags, and save the tokens.