It is true that language evolves, we don't speak like Chaucer or Shakespeare or Dickens. But what I can't stand is when 51% of people pronounce a word incorrectly (to my ears), they become right and the 49% become wrong. Dictionaries are observatories, not conservatories,so they say, so the 'correct' pronunciation (and have you heard how many people thing that this word is spelled 'pronounciation'?) given in them reflects how people actually pronounce that word. But I don't know where they get their information from. How do they decide that the pronunciation of 'machismo' can ever be 'ma-kiz-mo'? Or that 'chorizo' should be pronounced 'cho-reet-so'. Both words are Spanish in origin, not Italian. (I've heard several people on TV, who should know better, pronounce them that way.) Everybody (apart from me) pronounces 'dissect' as 'die-sect' (to rhyme with 'bisect'). This should be a criminal offence, in my opinion. The Chambers Dictionary (1998) gives the 'correct' pronunciation as 'di-sekt'' (short i, accent on the second syllable), i.e. not reflecting the fact that everybody pronounces it as 'die-sect'. That link to the BBC mentions 'mischievous' being pronounced as if it were spelled 'mischievious'. This is pure ignorance, isn't it? These people must think it rhymes with 'previous', 'devious' and 'obvious'. Surely this will never be given as an acceptable pronunciation of the word.