Japanese as it currently exists is just really hard to read when written without kanji. A couple reasons: it has TONS of homophones, and it doesn't use spaces, and also it has lots of common words that are only 1 or 2 characters long. So if you're parsing a stream of kana, in the general case there will be several different ways to interpret the next couple characters and you'll constantly be backtracking.
So at a minimum, dropping kanji would mean the language needed to develop a system for where spaces go (which is less trivial than it sounds IMO). But also it would need to abandon a lot of homophones or find some way to disambiguate them. It could happen I guess, but I'm not sure how it could happen gradually.
Japanese could be written with the Latin alphabet very well, if a set of kanji radicals were retained and inserted before a part of the words, to disambiguate their meaning.
This is a not a new method of writing, but this is how writing was done in the past, for many millennia.
The oldest writing systems, like the cuneiform and the Egyptian, also used, besides signs that indicated the pronunciation of a word, determinative signs, which indicated the semantic domain of the word, e.g. it is a name of a human profession, it is a name of an animal, it is a name of a tool made of metal, it is a geographic name, and so on.
The determinative signs could be Chinese radicals to continue the tradition, or they could be a special set of emojis.
Sure - it's probably safe to say that any language can he written in any writing system, if one is willing to change both the language and the writing system :)
Korean could serve as a point of comparison, as modern Korean is written mostly without Chinese characters (you could mix them in if you really want to, but approximately nobody bothers), but it does have spaces between words. And yes, when you have a highly inflecting language, "where do the spaces go" is a very nontrivial problem.
It's a bit easier for Korean as it has far more available syllables (so fewer homonyms), but you could easily imagine these languages making different tradeoffs and ending up in different places.
A lot of material for younger readers uses similar spacing to Korean, like the Pokemon games. It works well enough when you know the vocabulary being used is limited, but even there it gets frustrating.
When you're reading, you're trying to identify a substring and map it back to the unit of meaning, which is effectively the kanji. That works seamlessly with Hangul, because it mostly blocks (as syllables) the same way as kanji, and, as you mentioned, the extra vowels and silent consonants provide more disambiguation. With kana, the length you have to scan to read, and then guess at (using only context to disambiguate), a root word, is a lot more arbitrary.
Mechanically kana is just less compressed, less aligned, and makes it harder to visually identify/scan for units of meaning. Obviously Korean shows that you can make different tradeoffs, but for Japanese losing the kanji would probably necessitate reworking Kana as well - and unless the pronunciation changed, it would probably need to be in a way that represents the pitch accent, which is a modifier on the whole syllable, rather than just a few extra consonants or vowels.
Agreed, I think that's a close analogy and it's wild to me how recently Korean dropped kanji. But I imagine having a lot more vowel sounds made it a lot easier. I've wondered whether the two interacted - e.g. if there were word pairs that had previously used the same vowel sounds, but changed after the switch to Hangul to be distinguishable. Do you know by any chance?
> it has TONS of homophones
I never get this line of reasoning - so are people listening to spoken japanese just in a perpetual state of confusion because they can't see the associated intended Kanji?
Also this coming from a person on a platform who's primary language is commonly pronounced with the last syllable/letter of each word used to start the next one.
The engli shlanguage ha sit sown nonsense.
Spoken Japanese uses pitch accent to distinguish homophones
So shouldn't the better solution be a few more pronounciation markers beyond two strokes, a circle and tiny letters instead of thousands of chinese characters?
I mean, do you want to understand it or are you venting? If the former: No, spoken Japanese is not constantly confusing, because (a) some words are distinguished by intonation, (b) Japanese speakers know what the homophones are, and either avoid them while speaking, establish the context before saying them, say extra words to clarify which word they mean, etc.
edit: Kind of humorously, in some cases groups also develop lingo to avoid homophones. E.g. the JP words for science and chemistry both have the standard pronunciation "kagaku", so people in industries where both terms are used often use nonstandard pronunciations (bakegaku for chemistry).
Also the homophones thing is probably lesser of the things I mentioned. A typical sentence might only have 1 or 2 overloaded words, but it will have lots of substrings that can be parsed multiple ways.