A hash function for meaning?
If you have been writing code for a while then I am sure you are familiar with this common developer experience: Startup on some project with all loads of excitement then…. forget it exists quarter way before you are there (if you have any defined progression anyway), just so to jump onto the then more exciting project.. or.. move on to sth else.
I personally had to clean out a folder of many such half complete projects last week. But one thing I noted, and I am sure with this you too are familiar.. there were, multiple instances of the same idea for a good number of the project folders.