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Update 2019-09-01-actors.md

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fix link to phony
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@ -54,7 +54,7 @@ Different implementations differ on details after that, such as what order messa
I'm particularly fond of the [pony](https://ponylang.io) programming language's take on the actor model. I really can't being to say enough nice things about their approach, and fully describing it is beyond the scope of this blog post, but if you come out of here with an interest in the actor model, then I highly recommend checking out that language. Maybe watch a few of the talks from the developers that have been posted to youtube, or read their papers about what is *easily* the most promising approach to garbage collection I've ever come across. I'm particularly fond of the [pony](https://ponylang.io) programming language's take on the actor model. I really can't being to say enough nice things about their approach, and fully describing it is beyond the scope of this blog post, but if you come out of here with an interest in the actor model, then I highly recommend checking out that language. Maybe watch a few of the talks from the developers that have been posted to youtube, or read their papers about what is *easily* the most promising approach to garbage collection I've ever come across.
Anyway, I don't actually work on anything written in pony, but I like their version of the actor model so much that I decided to see if I could trick Go's runtime into faking it. The result is [`phony`](https://github.com/Arceliar/yggdrasil-go), which manages to do most of what I want in under 70 lines of code. When we write code using this asynchronous message passing style, instead of ordinary goroutines+channels, the implications are pretty significant: Anyway, I don't actually work on anything written in pony, but I like their version of the actor model so much that I decided to see if I could trick Go's runtime into faking it. The result is [`phony`](https://github.com/Arceliar/phony), which manages to do most of what I want in under 70 lines of code. When we write code using this asynchronous message passing style, instead of ordinary goroutines+channels, the implications are pretty significant:
1. There are no deadlocks. Message sends always succeed, and are quite fast (it doesn't even require [CAS](https://en.wikipedia.org/wiki/Compare-and-swap) instructions in the normal case). 1. There are no deadlocks. Message sends always succeed, and are quite fast (it doesn't even require [CAS](https://en.wikipedia.org/wiki/Compare-and-swap) instructions in the normal case).
2. Inbox sizes stay small due to backpressure: if the sender sees that the receiver's inbox has too many pending messages, it will schedule itself to stop at some deadlock-free safe point in the future, to wait until the receiver signals that it's handled the message. 2. Inbox sizes stay small due to backpressure: if the sender sees that the receiver's inbox has too many pending messages, it will schedule itself to stop at some deadlock-free safe point in the future, to wait until the receiver signals that it's handled the message.