system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why do predictive text/autocorrect seem hell-bent on using typos you made one time a month ago?
gpt
If it doesn't catch the typo, or if you make the same typo multiple times, it will add a new word to your phones dictionary (which is designed as a way to always be improving your autocorrects).

Most phones will let you access the dictionary of new words that have been added, so you can go in, find the typo, and delete it, so it won't auto correct to the typo anymore.