The Soul of Erlang and Elixir • Sasa Juric • GOTO 2019

[@GOTO-]

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[@willbinette1130]

God all conference presentations should be done like this. High quality information with no filler and great explanations. Amazingly well done

[@jordibares]

Brutal in every single aspect, absolutely spectacular delivery, concise, to the point, no fat talk... love it.

[@MichaelCampbell01]

Loved this. As a beginner in Elixir, this just makes me more excited to use it. Favorite quote: "It was killed, brutally. You're not going to try/catch your way out of that one."

[@weichengye3736]

4 years later are you still writing elixir ?

[@سنابل-الفردوس]

​@@weichengye3736 i never wrote elixir before but i am using another Beam language called Gleam you can use gleam code and compile it to Erlang or you can compile it to JavaScript so you can build the backend and the frontend in one language Now Elixir is trying to add static typing to itself but Gleam is built as a static typed language from the start syntax looks like the good parts of rust if you put most devs in one corner and tell them which sentax do you like the Erlang and Elixir one or the Gleam one most will say the Gleam one cuz it feels like most c like languages people have bugs in production with Erlang and Elixir because they are dynamicly typed that's why people use typescript insted of JavaScript because types make you create less bugs like trying to add a number and a string together

[@JeremyAndersonBoise]

Thank you for this talk. Joe Armstrong was a brilliant man, he will be missed by many, whether they know it our not. You explained the basics, beauty and power of BEAM wonderfully clearly. Bravo!

[@goldnutter412]

Those OG's were all incredible. Today we're surrounded by spoilt lazy shitters relatively speaking ? don't know how hyperbolic that statement is but.. eh I'm in a hurry ! I loved these and other Lex Fridman interviews.. and of course god of Quake, could listen to Carmack for years without getting bored lol kzbin.info/www/bejne/hWrYoYmYfLh1fNE Brian Kernighan kzbin.info/www/bejne/e3aUg2t8jrp9o5I Donald Knuth LMAO wrote first program in raw machine language.. ASM what's that ? LOL going to have to rewatch this one now.. and his first visit with Lex. I remember now how much I loved his mindset !

[@eternalproximity]

One of the best technical talks I've ever watched. Everything was so clear and I'm a total noob when it comes to Elixir / Erlang / BEAM.

[@goldnutter412]

Not even a programmer and it's fun to imagine what the next generation of teen enthusiast is going to be able to build. And it will run flawlessly until some idiot tries to improve it decades later

[@valcron-1000]

This is how you sell a technology. I'm not interested in Elixir per-se, but BEAM sounds amazing: debugging in production, thousands of independent processes, push code updates to production while running, etc.

[@mlliarm]

Debugging a system live with zero downtime sounds a crazy idea to me. And yet it's possible !

[@krazymeanie]

Depends on who you're selling it to

[@alivape]

American tutorials: x1.25 speed Indian tutorials: x1.50 speed Saša Jurić: x0.50 speed

[@sonant_bwolfe]

you can really tell just how sharp this guy is to be able to do a talk at this speed, at this technical depth, while doing it fluently and concisely in a language that (presumably) isn't his mother tongue. I wish I could do one of those things :D

[@prwchan]

Yeah, respect!

[@roxymigurdia1]

indian tutorials: 0.25 speed heavy accent

[@vswss]

Indian tutorials: skip.

[@Qornv]

Amazing, really sold the language and beam runtime

[@stan916]

Usually I speed these kinds of talks up when watching; I did not have to do that here. Very concise and clear.

[@vanopnt]

I've watched a bunch of Erlang/Elixir presentations and they mostly restate the same superficial information. This is by bar, by far the best thing I've seen on the topic. Bravo.

[@alinisar87]

Absolutely amazing, who the fuck is disliking this video and why? The only thing that is really astounding is why Elixir/BEAM is not used more often in industry...

[@apester2]

Randomly watched this today. 5 years later to the day.

[@fixpoint]

Wow. This was easily the BEST technical presentation I’ve ever seen. Each topic was concise with a live demo to illustrate. He really showed off the power of Elixir and BEAM. I just ordered his 3rd edition of Elixir in Action book! If he can write like he presents, I’m in for a treat! As another commenter said, this was a masterclass in tech talks. Loved it!

[@ivorybanana2183]

Also watch a tigerbeatle presentation - a finance database written in Zig. It is insanse

[@shota9027]

Is your brain concurrency operating on BEAM as well? The presentation was so smooth and orchestrated so well - no downtime!

[@fode-diop]

Truly awesome! Makes me even more hyped to learn elixir. This guy is a G 🙌🏿

[@GAtroybob]

The context this presentation provides really opened up the 'Elixir in Action' text for me. And echoing that the presentation itself is perfection!

[@llll3816]

Amazing talk. Great delivery. So densely packed with valuable information.

[@randito2387]

I rewatch this video every year or so. It never ceases to inspire. The uniformity part really hits as someone who has to know / learn multiple systems and never get to really master them.

[@rallokkcaz]

How did I not find this when it was posted 2 years ago?! This should be mandatory for people who aren't just learning Erlang/Elixir syntax and basics.

[@alibarznji2000]

The fact that you can redeploy to production without actually interrupting the server feels like magic. I'm astounded that Beam is not more popular

[@perholmgren2048]

A masterclass in tech presentation, this is how you do a demo.

[@ranjan49sen]

Technical uniformity - makes a lot of sense. Loved the presentation.... thanks Mr. Juric

[@madlep]

Watched this talk a few times. Is such great execution and delivery. Text book case study on how to do a tech talk. It's the coding equivalent of a stage entertainer spinning a dozen plates and casually keeping them all going while casually talking with the audience about how to spin plates.

[@thesunilsun]

One of the best sessions I have heard on Elixir concurrency ! Thanks a lot.

[@steffenuhlig1970]

The pace of the presentation and density of information are amazing.

[@Asrashas]

What is even more amazing is that the speaker manages to keep it easily understandable and followable, even at that pace and density.

[@MarcusHammarberg]

This blows me away. Amazingly cool stuff. So stable. So resilient. And it's been around for so long.

[@34tttttaa]

The detective part felt like a thriller :) Thanks for the great presentation and honesty (ie. not everything is perfect points).

[@Rohinthas]

I think this is the first time I had to slow down a video on youtube... thanks for this introduction, I paid attention to every second of it and came away a lot more interested in the BEAM-run languages! Like many, my background is imperative programming and the elegance with which declarative programming running in BEAM solves some of my major gripes sparks this strange excitement that only a (mental) paradigm shift can create. I guess I will go out and get a book soon ;)

[@HerrSiering]

Ha, same here. I double checked whether I really had the video on normal speed 😆

[@xucongzhan9151]

Amazing talk! I was thinking about learning elixir and your talk just made me 10x more interested in the language and the platform. Thanks for sharing!

[@krazeemonkee]

also, another excellent, jam-packed talk by sasa juric on the magnificent BEAM ✨ 🙌🏽 ✨

[@spenserlol]

This is the best demo-driven talk I've ever seen ✨👏

[@lazykid9167]

Boom, that was a talk like no other. That was a good use of the viewers time. Thank you.

[@YounessFkhach]

kudos to the cameraman following the guy on each step

[@cornetapluspluseleven9296]

r/PraiseTheCameraMan

[@zed9zed]

The cameraperson could have zoomed out just a little... which would reduce the amount of camera movements necessary. As a viewer it's disconcerting to have the "world" constantly moving. I don't mind seeing a guy walking back and forth, however.

[@RabbanahMalayalam]

Its a auto follow mode, not a person

[@deformercr6680]

@@RabbanahMalayalam lol ikr, looks like 100+ people are unaware

[@yashkhd1100]

Extremely to the point Presentation. Very Clean the informative.

[@pkphilips2]

Loved the presentation! very tight, very informative.. no waste of time at all.

[@diguifi0fficial]

this guy has default 2x speech

[@SpittingMage]

I watch this talk every time before I need to "sell" Erlang or Elixir :)

[@mockingbird3809]

The speaker really knows what he is talking about. No beating around the bushes. To the point, Great talk!

[@garrettgeorge877]

Brilliant talk. Thank you, Saša Jurić.

[@stevenstone307]

The best talk I have ever seen on BEAM.

[@serialkiller504]

I watch this a year after and it still blows my mind.

[@hernani_neto]

Great presentation, it was a good introduction to the BEAM power and potential!

[@scasware]

Wow. Amazing presentation!. Leaving aside the fact that BEAM is an impressive technology, the presentation itself is one of the most understandable, interesting and educational demos I've ever seen. Great work!

[@goldnutter412]

Slightly better than Windows ! 🤣🤣🤣🤣🤣🤣

[@MrFrumos]

OMG, this is just terrific, thank you for so brilliant demo. I am 1 year leaning Elixir and now I see I am on right direction. Thank you again for you amazing work.

[@odanabunaga2505]

Excellent talk! Saša's book is one of the best investments I've made 👍

[@nikadsf670]

Watching this at 0.85x speed is the ideal way to not miss anything I think, awesome talk :)

[@pradeepspace3]

I loved this speech. Perfect talk 👌 Perfect presentation & demo 👌

[@maximofernandez196]

This was amazing. I was like "well, what makes erlang like languages so great?". Now I get it. I think it's gonna be one of my go-to language in the future

[@nicolas393]

Thanks, that help me a lot understand why my peers were so hyped by Erlang

[@bansosain8269]

to Nicolas VERGNE

[@jenrykster3283]

One of the best tech presentations I've seen

[@PreRendered]

One of the best talks I've seen.

[@serialkiller504]

Stunning! The speaker and also the language.

[@zed9zed]

Fantastic quality presentation of this (complex/rich) topic. Plus, this guy is really good at delivering dense material quickly and succinctly. However, I think it's rarely beneficial to take any questions from the audience until much later or at the end of this kind of presentation. Most of the time the questions would be answered later as part of the presentation.

[@evans8245]

🔥 i saw this along time ago, didn't quite get it. Now, I can see why people love this ecosystem so much 💓

[@ahmadbaitalmal1040]

Saša, this is the best BEAM demo I'v come across. Job very well done!

[@aboutajedyneayoub921]

Great presentation, much love for Elixir/Erlang/Beam

[@deviantech]

love the precision and pace of his speaking!

[@g.5214]

Bravo Saša, fenomenalno predavanje!

[@snooddagg9278]

this is an amazing talk, good job!

[@re1konn]

no better tribute to Joe could be possible...very nice presentation

[@tsooooooo]

Really clear enumeration of the benefits. Keen to try this out

[@muralikothapalli]

Amazing talk !!! Best Technology so far

[@davidrobertsson7640]

Amazing presentation. Got me hooked badly to this tech.

[@kamalhm-dev]

Superb presentation! I’m adding elixir to my wishlist

[@BulentErdemir]

Very useful, informative, demonstrative presentation. Thank you.

[@andreienache6290]

completely amazing! 👏👏👏👏👏

[@elbrujohalcon]

This talk was AMAZING!

[@dylanngo4454]

It saves my time. Thanks.

[@lexalexander9334]

Absolutely amazing talk. Makes me want to learn Elixir.

[@zoom0211]

Brilliant presentation! Great selling points! The characteristics of the whole platform are very interesting and I'm totally into it.

[@deanrumsby]

Bloody hell, I'm only 30 minutes in but this is an amazing demo of Elixir/ the BEAM vm! Awesome job man!!!

[@JosephCaburnay]

👍 Here’s my second thumbs-up because one isn’t enough for how amazing this talk is!

[@lazykid9167]

Thumbs up for your thumbs up.

[@bluesprodeep2079]

Great tutorials! Can't belive I've eventually kept up with the non-native English speaking.

[@parxelx5181]

Nikada nisam odslusao konciznije i kvalitetnije predavanje (racunavsi tu i udemy, udacity, pluralsite....). Obozavam Ruby, ali posto je R'n'R prakticno mrtav, tako sam dosao do elixir-a i beam-a. Cela tematika mislim da je ludilo, kao i samo predavanje. Svaka cast.

[@b42thomas]

Can someone help me understand why at around 19:00 the scheduler is running at 100% when he inputs -1? I get that the calculating process is running nonstop, but why does that effect the scheduler? Maybe I just don’t understand what the scheduler graph is really displaying or how the scheduler process itself works?

[@sbef]

That scheduler graph simply is how much CPU are the BEAM processes using at any time. It shows 100% because that one process is consuming all available CPU, stuck in an infinite loop.

[@ronysetiawan7184]

When I was curious about how the WA application could serve millions of clients, it brought me here ... awesome programming language

[@Skiamakhos]

Decades ago I was working app support for a system that was basically an Enterprise Service Bus kinda deal, implemented in SoftwareAG's webMethods 1.0, taking SOAP messages that were documents to be routed to several back end systems, legacy stuff coded in COBOL or C or whatever, but they worked so nobody was about to rip them out. This system though was to enable users to submit their documents for processing via the web, to speed the process - and once it was up & running we'd process documents that had been scanned in at various locations. wM1.0 had an interesting feature whereby if it got too much input for its input buffer the processing would lock up & the system would go down. IF ONLY we'd had this. If only we'd had Elixir. Probably wouldn't have been much code to write either.

[@gustavobertolino400]

Simple, brutal, impressive...

[@auraSinhue]

impressive talk, amazing presenter

[@shivangsaxena6943]

Fantastic talk. I'd love to hear more about the problems with distributed elixir/erlang that you mentioned in your talk but didn't go into detail

[@johnrobie9694]

I _think_ he was mostly referring to the libraries for advanced distribution concepts (eg. process recovery / handoff when a node goes down). Or more specifically, things related to topology changes. For most cases, the distribution features that are available (and stable) feel like magic compared to other languages. The more advanced you go, there's more tweaking needed, and less "it just works". Honestly, I think he was just being a bit modest since he just spent 40 min showing off what the BEAM could do.

[@tkemaladze]

fantastic talk

[@jflosier]

Perfect presentation!

[@metalheader1]

The comments are real. This is a great presentation and I now understand what makes Elixir special. Definitely sold on it now!

[@kristun216]

amazing talk

[@toki4139]

The Beam scheduler in one sentence : "“The needs of the many outweigh the needs of the few, or the one.”

[@johnrobie9694]

Good for software, bad for people.

[@Gashdal]

@@johnrobie9694 i would argue its good for people too, unless one is particularly fond of the taste of boot leather

[@thesenamesaretaken]

Just based on this video it sounds like "you step on nobody and nobody steps on you" or "do what you like, but no violating the NAP"

[@softwareminimalist]

Wonderful presentation, great content. Awesome job!

[@mohammedsadiquep4719]

Very awesome presentation

[@geekboy328]

Amazing, I love it!

[@uneven88]

Thank you for this great presentation, does anyone has any pointer towards the issues mentioned at 32:52 ?

[@MaximCherednik]

Probably the stability of the cluster - split brain issues.

[@josedonato9471]

this was amazing. thank you

[@awaisraad]

I have recently started to dive in Erlang/Elixir world. I would consider myself well versed once I write the application that is demonstrated in this talk.

[@CarlosAlexandre-dc3lw]

Thank you! Amazing!

[@AsadSiddiquee]

amazing presentation. everything to the point. i had to go back and forth to digest :D

[@MrFedX]

Very interesting talk! I’ve been curious about Erlang for some time and seeing thing demonstration it makes me want to explore more.

[@TheHanphoenix]

Amazing talk !I just started learning elixir (love it), I watched a few talk about erlan/elixir and this is the first I feel I can show to my team to (maybe) convince them to use it in futur projets.

[@Infinitesnooze]

amazing presentation!

[@sandeepvrao]

Loved the pacing

[@trantung2013]

Appreciate for your work, wish I knew that 6 months ago

[@vibhorsingh1983]

Thank you for this informative talk.. Very useful.

[@Zhuinden]

What an astounding talk! I wish all tech talks were at this level haha I learned so much in so little time

[@behnamheimer]

this is similar to the Common Lisp REPL power (restarts/continuations ). Does anyone know if it provides more features compared to CL?