Comment by usgroup

I found the paper took about as long to read as the blog post and is more informative:

https://arxiv.org/pdf/2301.10191

It is about estimating the cardinality of a set of elements derived from a stream. The algorithm is so simple, you can code it and play with it whilst you read the paper.

The authors are explicit about the target audience and purpose for the algorithm: undergraduates and textbooks.