Edit. Save. Refresh. Wait… Wait… Wait… Compiling code usually means waiting, but Turbopack makes iteration loops fast with caching and incremental computation. Not every modern bundler uses an incremental approach, and that’s with good reason. Incremental computation can introduce significant complexity and opportunities for bugs. Caches require extra tracking and copies of data, adding both CPU and memory overhead. When applied poorly, caching can actually make performance worse. Despite all of...