[xscott]

All that work to animate the little bits of data on the canvas, but greying the text was so irritating I closed the page. You don't realize how often your eyes jump back to previous sections until that ability is taken away from you.

It seems like they wanted to make sure the reader knew which paragraph corresponded to the current version of the image/plot. Maybe they could've gotten the effect they were after by setting a border or background on the presently relevant paragraphs.

[rhdunn]

Or even using the top as a kind of progress marker so you know where you are (or just reading from the middle of the page) only for the text to turn grey as you read it.