(*) denotes a blurb came from a prior list.
IBM models had supported all kinds of external devices, there was a lot of
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Forgetting releaseLock() permanently breaks the stream. The locked property tells you that a stream is locked, but not why, by whom, or whether the lock is even still usable. Piping internally acquires locks, making streams unusable during pipe operations in ways that aren't obvious.
The sky, in a sayingThe answer is Limit.