Wait, so the idea is in the future, fonts will contain arbitrary full-color vector and bitmap images, they will contain Web Assembly code that needs to be run, and they will be streamed over the network? I’m probably missing a few other proposals, as I only skimmed.

Did anyone stop to consider if this is really necessary? The author makes it sound like he has used his influence steadily over the years to make fonts more complicated. “In year X, I proposed that fonts be able to do Y, because why not?” I get that text shaping is so complex, that in terms of open source, there is just Harfbuzz. I’m not an expert in this area. But I don’t think it’s a good thing if “font standards” are constantly getting new features, like web standards, and font renderers are like mini browser engines, where the sheer scope and number of features and rate of new features keeps everyone using the same codebases.