This is what I also thought -- that an image taken of someone's retina could predict whether they would later engage in sex with the person they were looking at

This is what I also thought -- that an image taken of someone's retina could predict whether they would later engage in sex with the person they were looking at. Someone smarter than me, build the thing, put it on a phone app, and make the next big dating app! No more swiping, just look at the picture for a subconscious second, and let the phone camera + our algorithm swipe for you!