From the article:<p><i>&quot;A deep-learning system can be trained to recognize particular species of birds, but it would need millions of sample images and wouldn’t know anything about why a bird isn’t able to fly.&quot;</i><p>Deep-learning ≠ only image recognition<p>Of course if you train it only on images it will only know how a bird looks like, but if you train it on the properties of the birds and their ability to fly, then it will learn why a bird isn&#x27;t able to fly.