...I'm not looking at that. I'm usually adventurous but someone else take the plunge. I think I heard about it on another forum.
What perception does it mess with, exactly?
I looked at it for about three minutes. The monochrome grids do show the stated effect, mildly.
I lack the capacity to do that for 15 minutes.
The question is, does that grid still show the effect after 3 hours?
Yes, I tried this for about 8 minutes, and it lasted for two days. Life hack!