Why learn how to write an essay if your computer can do it better than you ever will?
Why learn how to figure out math problems if your computer can do it infinitely faster and better than you ever will??
We answer [as Jews are wont to do] with two parallel questions:
Why go jogging if you can get in your car and get there much faster?
Why eat and digest food if you can instead just put it in your food processor and let it digest the food.
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When we stop thinking and developing our Divinely bestowed talents and qualities - part of us dies.