This brings us to an important lesson about formal verification and system design: the paradigm gap. Pure TLA+ is a beautiful event-driven way to describe the mathematically correct state of your system. However, the environments where these systems actually live (Java, Go, C++, or Rust) are fundamentally built around sequential threads, loops, and queues, just like our PlusCal model. The impedance mismatch between an event-driven specification and a sequential implementation introduces the risk of HOL blocking. Because modern programming languages make it so effortless to pause a thread and wait for a resource, it is incredibly easy for a system to fall into the blocking trap. We should be cognizant of this pitfall when implementing our designs.
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至於這個目標能否達成、以及是否能在不永久疏離鄰國的前提下達成,仍然是未知數。