Reframe null value errors ch06-02-match.md #4177
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This may be pedantic, but so is Rust!
As written, the prose conflates null value errors with Hoare's "billion dollar mistake". But as quoted earlier, that phrase applies to the creation of null values. What is described here is just one trap that his "mistake" enabled.
I have tried to re-phrase more accurately, but my interest is in correctness rather than my word choices.