"By making the Send button larger and more prominent, participants were able to spot the button four times faster."
By making the Send button larger and more prominent, participants were 4x more likely to accidentally press it.
Also, participants were given 2x less vertical space in which to create their content.
As a result of these studies, we enlarged the button another 2x in order to double the number of messages sent, while reducing the content until it was just 3 emojis on one line.
/s
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