After all, polishing stone tools was the distinguishing factor between Homo Erectus and Homo Sapiens.
Homo sapiens would use both knapped and polished stone tools, employing high-tech and low-end products alike. However, as far as discoveries have shown, Homo Erectus had not yet developed the ability to use polished stone tools, solely relying on low-end knapped tools.
It was clear that Homo Sapiens were more intelligent, while Homo erectus did not possess the same level of intellect. Of course, this was because Homo erectus had more developed muscles. In contrast, Homo Sapiens had a weaker physical constitution, but their intelligence led them to evolve a higher level of intellect.
The differences between knapped and polished stone tools were as follows: differing methods of production, representing different eras, and having different functions.
