Through the last three years of my undergrad, I have worked closely with a professor in my university and we published several papers together. Once I graduate this spring, I plan on working for two years before going back and applying for graduate school.
I am wondering if it would be “weird” if I ask my professor to write me a reccommendation letter now and save it for two years when I apply. He has previously told me he’d love to write me a very strong reccomendation letter for grad school. However, he is a bit old and he tends to forget some details in a few months so I am worried that in two years he would forget many details he would have otherwise included in the letter.