This is an imperfect analogy, but here goes: It's like computer hibernation, but for a process that runs on a whole distributed system instead of on a single c

This is an imperfect analogy, but here goes: It's like computer hibernation, but for a process that runs on a whole distributed system instead of on a single computer. As programmer of that process, you just focus on writing your business logic with the assumption that each step will eventually complete, and not have to worry about power loss/network loss/machine loss while your process is running. This way, it's much easier to reason about and focus on the thing you care the most: your business.