Spaced repetition is a memory hack. We know that spacing out your study is more effective than cramming, but using an app you can tailor your own spaced repetition schedule, allowing you to efficiently create reliable memories for any material you like. Michael Nielsen, has a nice thread on his use of spaced repetition on twitter: The use of spaced repetition memory systems has changed my life over the past couple of years. Here's a few things I've found helpful: — Michael Nielsen (@michael_nielsen) January 28, 2018 He covers how he chooses what to put into his review system, what the right amount of information is for each item, and what memory alone won’t give you (understanding of the process which uses the memorised items). Nielsen is pretty enthusiastic about the benefits: The single biggest change is that memory is no longer a haphazard event, to be left to chance. Rather, I can guarantee I will remember something, with minimal effort: it makes memory a *choice*.…