Immutability - Not a Universal Law but a Trade-off, Part 2

Immutability is framed as an architectural trade-off, not a universal good or bad, especially in storage and distributed systems.

Append-only designs can improve replayability, debugging, fault tolerance, and asynchronous event-driven workflows.

Different data stores vary widely in how well they support immutable or append-only patterns, from databases to event stores and object storage.

The main cost is added design and query complexity, so the right choice depends on the system’s reliability and scalability goals.