Did you realize some things from linguistics before you seriously started getting interested in it?
- I found voiceness pairs in czech.
- But later I realized than [ɦ] and [x] are not real voiceness pair.
- I "invented" a new letter - it was [ŋ].
- I found coincidence between [b], [p], [v], [f].
- I found coincidence between [p], [t], [k].
- I found coincidence between [m], [n], [ɲ]. (Who didn't? )
- I found coincidence between [c], [ɟ], [ɲ] and slovak [ʎ].
- I thought [i] is somehow different form other vowel and maybe it should be not a vowel.
- I found [ɪ] and [iː] are somehow different.
- I made an amateur phonetics alphabet, containing czech sounds + [ç], [ʝ], [ʔ], [ə], [θ], [ð]. This was shortly before being interested in phonetics. I don't remeber it very well, maybe I'll find it somewhere later.
Mutually intelligibile with native language
Everybody can speak it! Speedlang