Hey -- it's Ben (one of the authors of the post).
The most interesting thing about timelines to me is how naturally they work at multiple layers. This post shows how well they can be used for understanding values over time. But we'll see that the same requirements we discuss -- that data is ordered by time and grouped by entity -- make them a natural fit for expressing queries and implementing efficient, incremental execution.
We'll be around -- if anyone has questions or thoughts please share!
