"How is it installed on a wall?"

"The same effect would occur in any hue, the illusion happens when the background is a brightness level that's between the brightness levels of the two shades on the line segments. "

"Which is something I would think a "minimalist" would not want to worry about."

"Looks like a great bag, only problem is you might get hassled using this as a carry-on. Most airlines have a size restriction of 22x14x9 inches, i don't see this making the 9" requirement. "

"I wonder if flipping the orientation of the bottle would increase the effectiveness, the air pressure passing through the bottle should pull up the glass into the air stream right, like fuel in a carburetor?"

"I hope they add some crown to this concept on a "a-surface" perspective. Even the slightess amount of crown would make it look better and still keep the rectilinear form. "