I think the expository paragraphs are quite good, and their use of "particle" and "wave" is clear, logical, and effectively conveys their point. However, I don

I think the expository paragraphs are quite good, and their use of "particle" and "wave" is clear, logical, and effectively conveys their point. However, I don't see what clarity you get from bringing in quantum statistics to the discussion, the blobs at the centre of the diagrams represent both fermionic and bosonic particle exchanges: https://arxiv.org/pdf/1601.07001.pdf https://arxiv.org/pdf/1601.07001.pdf