The human finger can discriminate between surfaces patterned with ridges as small as 13 nanometers in amplitude and non-patterned surfaces, surface chemistry Professor Mark Rutland said. "This means that, if your finger was the size of the Earth, you could feel the difference between houses [and] cars," Rutland said.
I love the ads that have that X's and O's background so you mistake a random X inside the ad for the "close" button and accidentally give them a clickthrough.
An example of a non ad one is the Google AI popup on Google Discovery articles. The button is a proper size but it ignores you hitting it unless you hit a very specific point which I am certain is not the center.
I'm convinced that x doesn't even function as the close button, i make extremely damn sure to press ONLY the x button, and it still pulls the entire window up. Graaaaaaaaaa!!!!
Not so real, there isn't a black cross to close the ad, it's normally a white cross of this size on a clear background, nearby the red download button.