That could be said about 99% of all other languages other than Rust. 
…and btw the borrow checker is not black box at all. It just takes a while to truly grok.
dimitarvp
sodapopcan
I remember thinking the borrow checker was somewhat intuitive when I was briefly learning Rust. I’m very likely being very simplistic here as I’ve barely even written a toy program in Rust but I remember thinking, “Oh, so this is just forcing me to do what I try and always do anyway…?” Again, likely being simplistic/ignorant here 
Then I think it got into—I think it was futures?—and my eyes glazed over at the syntax alone and I haven’t been back since.
1
Zurga
dimitarvp
Same.
I have several successful async Rust apps under my belt but boy I almost wanted to slash my wrists while working on them. And sadly the ecosystem was still changing sort of rapidly back then so I was denied even the opportunity to have a lasting memory of a stash of valuable arcane knowledge.
Just yikes. Can’t bring myself to solidify the knowledge of modern async Rust in my head as of today. Just PTSD all around. 
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stevensonmt
Yeah, async Rust is what led me to give up ultimately. That and I got used to not fighting a compiler all the time writing Elixir. I will say the concurrency/parallelization in Rust was a breeze. I was a total neophyte and got Rayon working to process 1000x what I was able to do single-threaded relatively easily.
1
dimitarvp
Rayon is trivial and even that’s putting it mildly; you literally replace .iter() with .par_iter() in your code and you’re sorted.
Proper async is however a huge chore. And documentation is scattered across multiple Rust crates. You really have to go on a journey deep into the rabbit hole.
Though maybe some of the better LLMs like Claude could help.
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stevensonmt
that was my point. it was my first experience with parallelization and it was the simplest thing ever. It might actually be simpler than parallelization with Elixir.
Async, though, like waking up in a nest of spiders.
I guess there’s a reason the Rust marketing was “Fearless concurrency” and not “Fearless async.”
1
kokolegorille
dimitarvp
It’s not simple at all once you start doing non-tutorial apps. Plenty of problems nobody warned you about.
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