Some other things to consider. A working memory of 7 is a median number for the population. Some folks will have a greater working memory (some outliers are in

Some other things to consider. A working memory of 7 is a median number for the population. Some folks will have a greater working memory (some outliers are in the 80+ range). Some folks will have a smaller working memory. Specifically, someone with ADHD (a topic close to my heart), the size of working memory is typically around 3 items. Related, long term memory is also a bit more chaotic for those with ADHD; when you can only have three linked concepts at a time in working memory, it's going to be encoded with fewer overall links data. That all is to say, if you're building a tool to help people remember things, don't just build it with the median in mind.