This blog post is all about: why task trackers & basic note-taking apps are not enough anymore, where's the border between the need of handling structured & unstructured data, why we need some sort of a database (but with a flexible UI on the top) and what's the current direction of an evolution for personal knowledge management apps.Humans accumulate data. All sorts of. Notes. To-do lists. Vacation destination ideas. Important dates. Family budgets. And many, many more. Some of this data is very specific & we tend to use dedicated applications for that: music playlists in music streaming service…