2.3.2: Three Flashes: Blink can overlap flash, sentence need part deleted or updated, contradiction!

[jake-abma]

https://www.w3.org/WAI/WCAG22/Understanding/three-flashes.html

The following sentences contradict:

Blinking usually doesn't occur at speeds of 3 per second or more so blink and flash do not overlap. However, blinking can occur faster than 3 per second so there could be an overlap.

First it says: so blink and flash do not overlap

Than it says: so there could be an overlap

We might want to change it to:

Blinking usually doesn't occur at speeds of 3 per second or more. However, blinking can occur faster than 3 per second so there could be an overlap.

[jake-abma]

or change the Note to the note of 2.3.1:

NOTE
The terms "blinking" and "flashing" can sometimes refer to the same content.

"Blinking" refers to content that causes a distraction problem. Blinking can be allowed for a short time as long as it stops (or can be stopped)
"Flashing" refers to content that can trigger a seizure (if it is more than 3 per second and large and bright enough). This cannot be allowed even for a second or it could cause a seizure. And turning the flash off is also not an option since the seizure could occur faster than most users could turn it off.
Blinking usually does not occur at speeds of 3 per second or more, but it can. If blinking occurs faster than 3 per second, it would also be considered a flash.

[bruce-usab]

Thanks, that is good wordsmithing IMHO.

[mbgower]

The change was already made.