Trying to finally merge a mega-branch that's been open for months. While it was in code-review and testing, the trunk of the codebase moved on, creating conflicts, then the resolutions of the conflicts have to be code reviewed and tested, meanwhile...
It's like that Zeno's paradox story where by the time Achilles catches up to the tortoise, the tortoise has moved another 10 feet, etc.
#softwaredevs, do not let big branches remain unmerged for long! They generate a lot of drag on your project!