>But if they have to spend a month refreshing any time they want a job, it means their brain drops skills they learn that are closely related to the job they do

>But if they have to spend a month refreshing any time they want a job, it means their brain drops skills they learn that are closely related to the job they do. That means their experience is worthless -- they aren't retaining it, long-term. DP isn't used the vast majority of the time. That's not retaining "experience".