I was recently wondering what role each finger plays in our lives. The little finger is used when we need a bio break, men look at the good looking parts of a good looking women and then straight go the ring finger to see if she is engaged. The middle finger is used to showcase or perform different emotions depending on who are you with. Index finger is used to scold a child and the thumb used for thumps up or down.
All fingers get some role to play individually. But in recent years, the proverb ‘rule of thumb’ has taken a quite literal meaning. For more than half of the world, that use a mobile phone and especially for the 50 million people that use Blackberry or a similar device worldwide, the thumb is the most critical finger. If it were not for the thumb these devices, including its users, will be half as productive. Try using a BB or a similar device that uses a QWERTY keyboard without your thumbs.
Now since all of us will continue to use such devices and more such as tablets, pods and god knows what that will keep coming, popularity of thumb will continue to grow.
I am not sure, however, if is was created for such intensive usage.
