"Instead of allocating Expr objects willy-nilly on the heap, we’ll pack them into a single, contiguous array."
Zig compiler pipeline (AST, Zir, Air, Sema) does exactly this on all layers. Not only contiguous, but instead of array-of-structs it is struct-of-arrays, so walking the tree is even more cache friendly. For AST see: https://github.com/ziglang/zig/blob/master/lib/std/zig/Ast.z...
I work on a C dialect where everything is flattened. JSON and other trees in particular. Binary heaps are flat, merge sort and iterator heaps are absolutely great, can build LSM databases with that. Stacks, circular buffers, hash maps, etc, all flat. Templated output (PHP like) is done by a flat data structure.
Apart from locality and lifetimes, these flat data structures improve composability.
When every data structure is a flat buffer, you can mmap them or zip them or send them by the network, all by the same routine. They are uniform like bricks, in a sense.
I worked in a language where all datastructures were "flattened", could be trivially serialized to disk, and read in again. Called print and read. The language was called lisp. All flat, just parens.
Some of my compilers export the AST as lisp trees. Much smaller and more readable than json, and it can be executed. Uniform like bricks
Makes me wonder if people in APL/J/K community have not been influenced or influencing this kind of technique. IIRC Aaron Hsu does tree processing through arrays (but i'm not skilled enough to analyze his code)
Just looking at refs for the moment: Henglein and Hinze's discriminators are interesting, whenever you come back up for air. (are they also amenable to sorting codata?)
The oft-cited R Bernecky is, IIRC, also known as "Boolean Bob" for his SWAR-style algos. EDIT: nope, confused him with R Smith: https://aplwiki.com/wiki/Bob_Smith
(I once asked Boolean Bob if any of his tricks went back to the card processing days —I could even believe the keyed tree* might?— but he was too young to know, and the people he'd have liked to ask are no longer available.)
[Too low global b/w to feel the adrenalin.. wow.. what was your deduction chain for figuring how BoMs was next item on my stack? Guessing you started from assumption that pure bits mongering are not on the boundary of my ikigais(yet)]
On the heap, I (re)surfaced "Typed Array Intermediate Language" slides, but too low (local) b/w to try to find out^W^W^W^W sus out if this or smth v similar is already in dyalog.com's workflow.
[Medium b/w vibing that multiplicity of edits is a precise estimate of flow-of-war, ~ webpage memory usage is an accurate estimate of just how well run the entire organization is..]
Using kendō vocab I think what they're trying to say with f-o-w is to avoid 2 of the 4 fails: 疑, and (or at least?) 惑.
(interesting that 平常心 is unmarked, while in english the desired state of mind[heart] is marked)
No slides yet, but I finally dug up the quotation I'd promised you last year: Körner, The Pleasures of Counting (1996) p.413 ch.17 "Time and chance" in a footnote (arrived at via a path starting with Enigma decodes!):
> Social Darwinism applies the Darwinian doctrine of survival of the fittest to human society. Rich social Darwinists take wealth as the best indication of fitness to survive, academic social Darwinists take intellectual achievements as the best indication and so on. They are often haunted by the fear that the unfit do not understand this and may outbreed the fit.
疑 is a common failure mode for foxes, yes. 惑 might be interesting for me to consider in the musk-jobs case studies (roughly corresponding to where the confidence shall be reconsidered?) How about OCD? Subset of 惑? Could lead to failure-to-ship for designers..
>Part of what makes “founder mode” so effective is that startup founders have both a compensation structure and social permission that lets them treat every single issue that comes up at work as if their family is about to die
(The field promotions and war stories also remind me of 1796-1797)
Aha thanks.
a quick de-Maistre-style counter response before I dive in
social-darwinists.ch
Would you say (the proddy part of) CH culture is largely pre-1939 compared to the most of the rest of teutonia (some hills of ostmark excepted..& liechtenstein)
(Or even pre XVIII, leaving out AT et al if we review the antisemitism?)
TIL: JS modelled Luggnagg on 蓬莱 (& thus struldbrugs on Tensens???
)
Edit: my oftcited dream of future days took place in a cavernous, subtidal (glass of scifi strength) shopping mall (consumerist pleasure dome) of the same (near) future..
I also use Helix full time, I really like it, especially the multi cursor features. I was a neovim user before, but I did not enjoy configuring my editor all the time. I like Helix config defaults, LSP works out of the box, the commands are a bit longer to type, but more logical. I cannot work without a file tree, I settled with the tree explorer fork[1] and I'm happy with it.
Yeah I've considered it. For now ranger in a pop up term works nice enough for me. Ranger is a bit slow so I should move to lf or some other alternative.
