The problem it solves is that the vast number of PRs on a busy team don't conflict, both at the source level and the unit test/CI level, so you can increase the

The problem it solves is that the vast number of PRs on a busy team don't conflict, both at the source level and the unit test/CI level, so you can increase the throughput of PRs by automating the merging process and merging multiple PRs at once.