> vowels are still the most common letters in most Latin-alphabet based languages. Also "s" "t" and "n" are fairly-to-very common in damn near every language (

> vowels are still the most common letters in most Latin-alphabet based languages. Also "s" "t" and "n" are fairly-to-very common in damn near every language (Latin-alphabet or otherwise) due to how phonetics works. (They're the default-voiced-ness for each manner of articulation at the most-default-ish - alveolar - place of articulation for consonant phonemes.) The other two - "h" and "d" - are less universal, but still better than "j" and "g".