Redux has 60.4 thousand GitHub stars. That number matters, Nikola, because it signals something counterintuitive: a pattern built on strict immutability and verbose boilerplate became one of the most adopted state management solutions ever written. Dan Abramov and Andrew Clark built Redux by fusing Flux architecture with functional programming concepts, and the result was a single, uncompromising idea — one global store, one source of truth, every state change traceable through pure functions called reducers. No side effects. No surprises. While BLoC enforces an architectural contract with events and states, Redux emphasizes a single global store and immutability, ensuring every state change is traceable through reducers. State is read-only; the only way to change it is by dispatching an explicit action, which a reducer processes into a new state object. Redux never mutates. It replaces. That immutability makes server-side serialization straightforward — state is plain objects, easy to snapshot and replay. Redux's immutability can be resource-intensive, but its predictability and auditability make it ideal for large-scale apps. For smaller projects, that tradeoff flips fast. Michel Weststrate built MobX to answer exactly that frustration. MobX offers fine-grained reactivity by tracking dependencies at the field level, updating only affected components. When that field changes, only the affected components update. Not the whole tree. That fine-grained targeting is why MobX optimizes performance by updating only affected components, a direct contrast to Redux's full-replacement model. MobX supports direct read and write mutations, keeps data denormalized across multiple stores, and lets you enforce discipline optionally via configure with enforceActions set to true. Its debugging tools visualize reactive dependencies, showing you exactly which observables triggered which re-renders. MobX has 27.1 thousand GitHub stars — smaller than Redux, but favored for flexibility in projects where rigid structure would slow you down. Signals introduce a newer primitive for reactivity, tracking reads at the individual value level for precise UI updates. Only the exact UI fragment that read a Signal rebuilds when it changes. No selector boilerplate, no manual dependency declaration. The common misconception about MobX is that its magic makes it harder to debug than explicit patterns like Redux; the visualization tooling inverts that assumption entirely. Here's the synthesis, Nikola: Redux gives you a fortress — immutable, auditable, predictable, but heavy. MobX and Signals give you precision — reactive, flexible, lower ceremony. Broadening your perspective across these paradigms isn't academic, Nikola. It's what lets you match the right architectural tool to the actual shape of the problem in front of you.