Final answer:
Atmospheric air pressure significantly impacts us, as we have evolved to live within a specific range of pressure and experience direct effects during altitude changes, such as ear popping.
Step-by-step explanation:
The assertion that atmospheric air pressure has nothing to do with us is incorrect. In fact, we live at the bottom of an ocean of air composed of various gases exerting pressure due to gravity. This atmospheric pressure is quite significant; at sea level, it is defined as 1 bar, corresponding to a force of roughly 1.03 kilograms per square centimeter pressing down on Earth's surface. This pressure is comparable to the weight of a bowling ball pressing on an area the size of a human thumbnail.
Not only have humans evolved to live in this atmospheric pressure, but daily activities like flying or diving demonstrate our sensitivity to changes in pressure. For example, the familiar 'pop' in our ears during altitude changes is a direct response to pressure changes. Moreover, gas pressure at a molecular level is the cumulative force of countless gas molecules colliding with surfaces, which is significant enough to crush objects if not equalized by internal pressure.
Additionally, atmospheric pressure affects our environment and technologies; for instance, a 1.0 m² column of air extending from sea level to the atmosphere's top gives a pressure of about 100 kPa, proving the immense weight and resulting pressure of the atmosphere.