Not-so-firm friends
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The implementation is a C++ while (!workSet.empty()) loop: no recursion, no stack growth, a ValueList worklist and an std::map for O(log n) key deduplication. Its original purpose was computing package dependency closures. When nixpkgs replaced the quadratic lib.closePropagation with a single genericClosure call, evaluation got 15.5x faster.
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Load the current Julia source file using M-x julia-snail-send-buffer-file or C-c C-k. Notice that the REPL does not show an include() call, because the command executed across the Snail network connection. Among other advantages, this minimizes REPL history clutter.
So in the 1950s and ‘60s, the goal of every single business that employed humans was to find ways to replace humans with machines: in economic terms, to substitute capital for labor. And even though they were a relatively labor-light business to start with, this was true of banks as well. This was the case in the United States, but it was actually particularly true in Europe, where labor unrest among bank employees was an ongoing headache. (Financial sector employees were actually some of the most militant of all white-collar workers during this period: because of prolonged strikes by bank employees, Irish banks were closed 10 percent of the time between 1966 and 1976.)，更多细节参见超级权重