Here's a screen recording of the improvements to the dagit execution viewer. Note: - The "preparing" pare of step execution, so that you know when steps are starting up, booting processes, containers, pods, spark contexts and like. - Those events (process starts and resource spinup in this example) are captured and displayed in the timeline view. - You can mouse over log entries and see where in the timeline they occur. Amazing frontend engineering from @Ben Gotow as always! Thanks Ben.