Then you definitely did not grok it. What I gather from https://en.wikipedia.org/wiki/Icon_(programming_language)#Go... is that Icon's goal directed execution is more like `react whenever` in Raku (https://docs.raku.org/language/concurrency#whenever)

Junctions autothread. What does that mean? Using a Junction as an ordinary value, will cause execution for each of the eigenstates, and result in another Junction with the result of each of the executions. An example:

    # a simple sub showing its arg, returning twice the value
    sub foo($bar) { say $bar; 2 * $bar }

    # a simple "or" junction
    my $a = 1 | 2 | 3;
    say foo($a);  # executes for each of eigenstates
    # 1
    # 2
    # 3
    # any(2, 4, 6)

Documentation: https://docs.raku.org/type/Junction

Multi-threading and Junctions auto-threading are NOT the same thing.

Calling it auto-threading has lead many people to the wrong conclusion.

(It is possible that auto-threading may be done multi-threaded in the future, but it doesn't do it currently.)