This picture below represents a piece of paper where I wrote down my ideas for new articles, in the last few days, when making my 10 am tea pause. The tea kettle leaked on the sheet, slowly creating the brown stain. Many of my previous ideas were written with a purple pen, creating the purple stains.
What is amazing is the very realistic fractal shape of the coastline, assuming this would be a fictitious map representing some island. The physical process that created these stains is identical to the simulated Markov Process illustrated in one of my previous data videos published in October, with the final frame shown below.