Test case for Access Matters Quiz 1.1.6
We are advised to use the longdesc attribute of the image element when charts, illustrations, and other graphic images contain information too complex to be described with simple ALT text. 
The first difficulty with this technique is the need to create an additional page, and to craft a text description of something that is inherently difficult to describe. If it were simple to describe the object or data in words, why would we use a picture anyway? So, we use a picture to ease comprehension, and then need to use words too; a picture plus a thousand words.
A second difficulty with this technique is the different behaviors implemented in various assistive technology. Some screen readers open a new window for long descriptions. Others don't.
How do today's screen readers handle the long description attribute that is associated with the image on this page?
Please tell us about your screen reader, its version, and what you heard here. Respond to the original question in the Access Matters blog.