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When explaining the role of homotopy theory in physics, a recurring stumbling block is that the physicist says “topological” for phenomena that the mathematician would call homotopical (the mathematician in their right mind, that is, ignoring here misnomers like “THH” and its cousins…): such as in “topological field theory” or “topological quantum computation”.
Vague reference question:
Is there a good reference which would be illuminating to point the interested outsider to on this terminology issue and maybe highlighting the joint etymology of “topology” and “homotopy”.
For instance, the article listed in the entry Analysis Situs starts out explaining topology to such an interested outsider, but at some point just starts using the word “homotopy” instead, without warning, explanation or comment.
Re #2: We already have an article on this exact aspect: https://ncatlab.org/nlab/show/homotopy+theory+FAQ#intro. It has quite a few quotations from well-known sources.
Ah, thanks!! I had forgotten about the existence of that entry. These are useful quotes for what I am after, yes. Thanks.
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