While I’m thinking about younger students, I thought I’d sketch out a bit of an add-on product that I wish Hypothes.is had. Background/Set up I was looking at tools to pull annotations out of Kindle the other day and ran across Readwise again. Part of its functionality pulls highlights and annotations out of Kindle and then it has some UI that uses the idea of spaced repetition to have you regularly review what you’ve previously read and highlighted and presumably wanted to remember or use in the future. Of course this is very similar to other spaced repetition/flash card applications like Mnemosyne, Anki, or language apps like Memrise and Duolingo among many others. I also seem to recall that Amazon once had some UI like this built into their Kindle Notebook, but I’m not finding it at the moment, but I know they’ve changed that UI sometime in the last two years–perhaps it’s gone? The Pitch Given the number of learners who are using Hypothes.is, wouldn’t it be a fantastic bit of functionality if Hypothes.is had a spaced repetition UI that would allow students to easily go back and review over their prior highlights and annotations?! Presumably this could be targeted for quizzes and tests, but honestly as a lifelong learner I very frequently love using tools like Timehop or even my website’s built-in “On this day” functionality to look back over bits and pieces of things I’ve done in the past, which also includes my annotations, since I’m keeping copies of them on my website as well. Naturally such a UI should be able to search or sort by tag, date range, or even by source(s) so that a student could more easily wrangle a particular number of sources over which they wanted to review their material–particularly as over months, years, or decades one could build up a huge library of annotations. If, as a student, I was tagging my material by class course number subject area or something similar (like edu522, for example) I could then easily dump that into such a UI and be able to do spaced repetition studying for that subject area. Masters, Ph.D. students, and even the professoriate might appreciate it for occasional spaced repetition to be nudged or reminded of ideas they’d had in the past, but which may need rekindling to put into a thesis or potential future papers. The more I think about this, the more I’d love to see it in Hypothes.is. If it’s not something the main team takes on, perhaps it could be an add-on for a group like Remi Kalir’s who have done some interesting work with the API to create Crowdlaaers.  I’m planning to use import/export manually with tools like Anki to do some testing this coming weekend… I wonder what open sourced code may already exist that I could simply plug my Hypothes.is data into? Hmm…