If I felt old before, I feel old now. A friend of mind pointed this out to me.
Thumbs are the new index fingers.
If you’re over 30, you’ll probably press a doorbell with your index finger, while anyone under 30 may well use their thumb. That’s because they’ve spent so much time flexing their thumbs when sending text messages on cellphones and gunning down baddies on games consoles. Thanks to all of that exercise, those thumbs have become stronger, nimbler and more dexterous, which is why they’re likelier to use them more than their index fingers.
Frisky thumbs aren’t the only legacy of the latest round of design innovations. The type of products and technologies we use not only affects the development of our physical skills, but mental skills too. Mostly it does so surreptitiously, because we make the necessary changes instinctively.
I can see this. My poor index fingers have worked hard.
Let us say a word for them. The new kids on the block use their thumbs.

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