"We almost had that in the days when Internet Explorer was the dominant browser, and it didn’t work with web standards and Microsoft didn’t fix bugs, and everything started moving at a glacial pace. And it could happen again."
"It doesn’t matter whether or not MathML is a good XML language. Personally, I think it’s quite alright. It’s also clearly a success in the XML publishing world, serving an important role in standards such as JATS and BITS."