Am Sa., 11. März 2023 um 11:11 Uhr schrieb Shiro Kawai <xxxxxx@gmail.com>:
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> From the srfi text, it is allowed that the delay's body to be evaluated by more than one thread simultaneously; only that the result of force is the result of the first delivered result.  Am I right?

Indeed.  This is analogous to promises being forced while their "body"
is evaluated, even in the same thread.

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