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@@ -17,14 +17,14 @@ This is a collection of well-received talks about JavaScript, covering topics su
 
 1. [**The Future of Web Animation**](https://www.youtube.com/watch?v=hjgni3dXcVE): Sarah Drasner, JSHeroes `31:03`
 1. [**HTTP Headers for the Responsible Developer**](https://www.youtube.com/watch?v=Mjqf2kkFLy8): Stefan Judis, JSConf EU `23:31`
+1. [**The Cost Of JavaScript **](https://youtu.be/X9eRLElSW1c): Addy Osmani, PerfMatters Conference 2019 `36:55`
 
 
 ### 2018
 
-1. [**In the Loop**](https://www.youtube.com/watch?v=cCOL7MC4Pl0&list=PLUS3uVC08ZapyqfU21joP-B1vTItKf5qi): Jake Archibald, JSConf Asia `35:11`
-1. [**10 Things I Regret About Node.js**](https://www.youtube.com/watch?v=M3BM9TB-8yA&list=PLUS3uVC08ZapyqfU21joP-B1vTItKf5qi): Ryan Dahl, JSConf EU `26:41`
-1. [**Deep Learning in JS**](https://www.youtube.com/watch?v=SV-cgdobtTA&list=PLUS3uVC08ZapyqfU21joP-B1vTItKf5qi): Ashi Krishnan, JSConf EU `31:30`
-
+1. [**In the Loop**](https://www.youtube.com/watch?v=cCOL7MC4Pl0&list=PLUS3uVC08ZapyqfU21joP-B1vTItKf5qi): Jake Archibald, JSConf.Asia `35:11`
+1. [**10 Things I Regret About Node.js**](https://www.youtube.com/watch?v=M3BM9TB-8yA&list=PLUS3uVC08ZapyqfU21joP-B1vTItKf5qi): Ryan Dahl, JSConf.EU `26:41`
+1. [**Deep Learning in JS**](https://www.youtube.com/watch?v=SV-cgdobtTA&list=PLUS3uVC08ZapyqfU21joP-B1vTItKf5qi): Ashi Krishnan, JSConf.EU `31:30`
 
 ### 2017