Here, we have no better theory to explain why Microsoft is enthusiastic to spread C# onto the web via Silverlight, but not to give C# a run for its money in the open web standards by supporting ES4 in IE.The fact is, and we've heard this over late night truth-telling meetings between Mozilla principals and friends at Microsoft, that Microsoft does not think the web needs to change much. Or as one insider said to a Mozilla figure earlier this year: "we could improve the web standards, but what's in it for us?"