Are phonemes actually the most basic conceptual units of languages? (or: What are phonemes really?)
When there's final devoicing, the phoneme is sometimes notated as the "final" version, like <ząb> /'zɔmp/ in polish. Why wouldn't the phoneme represent the underlying /b/?
French has a bunch of silent letters that will show up in other forms: <vert> /vɛʁ/ <verte> /vɛʁt/. Wouldn't this show that <vert> does have an underlying /t/? Could we do <vert> /vɛʁt/ verte /vɛʁtə/ instead? (and we also add œ for <eu>, idk)
Maltese has a fairly common letter <għ> which can be silent, [ħ] or it diphthongises the vowel after it. There's words like <erbgħa>/ˈɛrba/ "4" vs <erbgħin> /ɛrˈbajn/ "14", <ħamsa> /ˈħam.sa/ "5" and <ħamsin> /ħamˈsiːn/ "15".
I can see why these might not be referred as phonemes, but then what term do i use? Is there one? It's related to the letters in spelling in the sense that they "feel" more historical but idk. The biggest question for me is that i fear if i use only phonemes as a referrence, i'd have to say that a lot of things are just random in the present day. i mean that'd be accurate for the spoken language but it still feels outlandish. It's like saying word final /p/ randomly turns into /b/ in polish.