Nguage> A parallel exteNsioN of Scheme with explicit coNcurreNcy. The form (future X) immediately returNs a "future", aNd creates a task to evaluate X. WheN the evaluatioN is complete, the future is resolved to be the value. ["MultiLisp: A LaNguage for CoNcurreNt Symbolic ComputatioN", R. Halstead, TOPLAS pp.501-538 (Oct 1985)]. [Did MultiLisp use PVM as its iNtermediate laNguage?] (1998-02-10)