https://ifixit.org/blog/10229/macbook-pro-keyboard/

A titan of tech and industrial innovation has been laid low by a mere speck of dust. Last week, Apple quietly announced that they were extending the warranty on their flagship laptop’s keyboard to four years. As it turns out, the initial run of these keyboards, described by Jony Ive as thin, precise, and “sturdy,” has been magnificently prone to failure.