Funny I am developing since 1986 too. One of the reasons of the chaos is JavaScript. Yet like it or not after mid 2000's many complicated apps are targeted to web only (Gmail etc). Now with the advance of new APIs Browser started to behave like an operating system - or runtime environment allowing rich-high performance application development. But JavaScript is still as ugly as before and I see Dart as a perfect high performance alternative that happens play well with JavaScript. I would gladly develop an application that run on Chrome rather than runs on Windows or Linux only.
