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I induced this effect in me on 17th April (just checked my browser history for exact date) using instruction given in this wiki article and I can still clearly

I induced this effect in me on 17th April (just checked my browser history for exact date) using instruction given in this wiki article and I can still clearly see test bars as red and green, over 4.5 months later, it is incredible.

jhardy54 6y ago
How long did you look at it?
- terramex 6y ago
  Hard to remember exactly but it was a few minutes per image. I repeated it a couple times over the day because I was fascinated by it. I'd say 30 minutes per image over 12 hours.