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Re: [csswg-drafts] [mediaqueries] prefers-reduced-motion prose leads readers to believe all animation should be stopped (#5594)

From: James Craig via GitHub <sysbot+gh@w3.org>
Date: Thu, 08 Oct 2020 18:15:08 +0000
To: public-css-archive@w3.org
Message-ID: <issue_comment.created-705739735-1602180907-sysbot+gh@w3.org>
Here's the problematic phrase I'd like removed.

> "…preferably to the point where all non-essential movement is removed."

There is a ton of research that indicates motion is useful in user interface, often designed in such a way that removing all movement degrades the usability of the interface. Both Microsoft's control name "Stop Animations" and this phrasing in the spec " all non-essential movement is removed" have led to questionable CSS advice on a variety of sites. Web authors are incorrectly assuming that people with vestibular disorders (or attention deficits) want all motion and animation stopped, and we have never found that 1. to be true, or 2. a great user interface choice.

How about this diff instead: 

- minimizes the amount of movement or animation, preferably to the point where all non-essential movement is removed.
+ removes or replaces the types of motion-based animation that either trigger discomfort for those with vestibular motion sensitivity, or distraction for those with attention deficits.

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