"Duolingo's algorithms figure out when you should practice words to get them into your long-term memory."
I practice every day. All the lessons are gold. Why then does it say I have a huge list of words I haven't practised for a year?
Why then does it say I have a huge list of words I haven't practised for a year?
Those stats are broken... happens the same with me.
At least some of them are no longer in the course as the underlying sentences are removed or changed, for example singular to plural. Some others do not show up in timed practice, maybe they are not suitable for fast typing, but can be revived by doing the lessons again.