English doesn't use accents because the speakers don't give a __ about the correspondence between the written form and the pronunciation. https://en.wikipedia.org/wiki/Ghoti
That is a really bad example, because English does have fairly productive pronunciation rules [1], and trying to make 'fish' come out of ghoti requires breaking them. 'gh' only occurs as an /f/ sound when it occurs at the end of a syllable; as an initial consonant cluster, it's invariably /g/. Turning 'ti' to /ʃ/ is a fairly normal affricatization, which requires a subsequent vowel, which is lacking here (consider wo…
It can't be an affrication, because /ʃ/ is not an affricate. (Although /tj/ is affricated, as /tʃ/ [think "gotcha"] - when you say 'ti', you're referring to words that were pronounced with /s/ rather than /t/.)
Wouldn't /sj/ -> /ʃ/ usually just be called "palatalization"?
(The specific phenomenon in the context of English appears to be called "yod-coalescence".)