Erlang wasn’t the first implementation of CSP.

Clojure has it’s own set of idioms; it comes with some small surprises for old lisp hands. There are some things it’s really brought into the mainstream: performant persistent data structures in particular.

As well as excellent tooling and pedagogy, the principle attraction of Racket is the macro system. There’s a great book about this (this is true of just about all aspects of Racket). Racket’s focus is on building a tower of languages via macro extension. Metaprogramming is thematically FP-adjacent but neither sufficient or necessary; but if you’re looking for a fun learning experience it’s really worth a look.

In terms of employment opportunities - I know of several Clojure shops (on the JVM it has the bonus of being able to take advantage of the hole ecosystem), but I’m not aware of anywhere that’s using Racket outside of the academic sphere.

Another great avenue into this world is Racket. The tooling is fantastic and the documentation culture is first-class.

I’ve a couple of GP friend who used to describe “Dr Google” as their online colleague.

The point being, they were somewhat trained in interpreting risk as opposed to the stereotypical googler-of-symptoms. Once upon a time search engines were quite useful.

I’d go with Erlang over elixir, but it sounds like you already have an interest in gleam.

FWIW: just pick one and get started. There are some major axes to consider: pure versus impure, lazy versus strict, static versus dynamic typing, but to kick off if you’ve done no FP before it’s probably better to just go for it.

There are some really intriguing “next steps”: SICP, the ML module system, the Haskell ecosystem, the OTP approach to state, but to begin with it’s just worth getting used to some basics.

I kind of expected a lot of this; I remember the sendmail 4 book from back in the day when O’Reilly had that, DNS and BIND, and Perl as the entirety of its corpus.

I’m primarily transfixed, not by the example in your comment, but that you don’t voice the “th” in “with”.

It won’t (using your example explicitly) but in general what you’ve discovered is that:

1. Variables hold values
2. Some of those values are references to shared mutable objects.

Lists fall into the second category. There are ways to copy lists if you want distinct behaviour.

list2 = list1[:]

will perform a “shallow copy”. If you have a list of lists, however, the nested lists are still shared references. There is copy.deepcopy available to make a complete clone of something (including all its nested members).

Yeah, a more modern take on mutexes (as boxes for values) and support for structured concurrency would be fabulous. Those are somewhat orthogonal to the goal of being able to write straight-line code without function colouring. Long ago, eventlet provided something like this [although it had smoe subtle and deep bugs that took a long time to track down].

Potentially, a major stumbling-block would be providing machinery so that interleaved FFI & python calls can cooperate (if that’s determined as being in-scope, which it ultimately should be).

The writer is not wrong about the awful ergonomics of having to deal with async. Project Loom took a long time to land but it really demonstrates how to do this kind of thing right.

You’ve managed to pivot from idiot to twat. Take a breather.

I’m not quite sure why you fetishise a bit-for-bit over semantic equivalence. Doesn’t it turn “it works on my machine” into "it works on my machine as long as it has this sha: … "?

It’d be nicer to see tagged unions first, with the machinery for those, and then take steps to provide a semantic fix for error handling.

The “satisfaction” is probably novelty. UK/EU, nobody thinks about it.

I think there’s a kind of fetishisation of manual transmission in the US. Like your emergency scenario: I guess if you need to accelerate away from 30-50 feral hogs then you might welcome it.

“Lead with the foot that is going down” is missing from this.

You typically learn to feel the accelerator and brake with one foot but just engage the clutch (ie, all the finesse is letting the clutch out). But you know this. All your muscle memory works like that. When you switch to automatic, just use the one foot and it works much better.

You have probably already worked that out but it’s handy advice if you’re a passenger in an automatic with a first-time driver who is used to manual.

Mind your ankles. The slopes around here are slippery.

In the UK, in general, take advice. If you’re bang to rights then a guilty plea (in court, not to the police) can affect sentencing.

Unfortunately, having said that, the UK conviction rate for rape is unbelievably low. “She liked sex ergo she deserved it” is still a line that juries are too willing to buy. It’s fucking depressing.

Heaven’s Vault.

If you had a brace of five-syllable lines bracketing that and managed to reference the season, you’d have a perfect haiku.