Bubble is a platform that allows programmers to work on multiple features simultaneously by creating different branches for isolated workstreams. Merging changes from these branches is a core principle in software development, and Bubble simplifies this process with visual, accessible, and understandable steps. The merge flow guides users through the process, flagging any potential conflicts along the way. This feature helps developers minimize errors, fix issues quickly, and experiment with new ideas or features by isolating work into branches.