So, isn't sidestepping all of the problems author had with other technologies not an advantage enough? Not only that, using html/css for layout allows for easily created and very flexible responsive layouts which half of the other toolkits can't do at all out-of-the-box. Author seemingly swept this approach under the rug without ever seriously considering it ("I don’t have any personal experience using Light Table", "so developers can use hipster technologies like HTML, CSS and JavaScript", etc), and I can kind of see why he thinks that. But as a frequent user of such applications, I'm willing to take a slight performance hit if that allows me to use the same app on any platform, even if it's size becomes 200 megabytes bigger. Honestly, I'm a bit baffled why people are bothered so much by those 200 MB, it's not a burden to download it, it doesn't take much space on my ssd, or my RAM for that matter.