system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Does the weight of large cities like LA, or New York City cause any problems to the earth with the large amount of weight on a small location?
gpt
No, it does not. Consider the size of those cities, then consider the size of the earth. Consider the structure of the planet; what is underneath these cities is far more dense and durable than they are, and can support a **lot** of weight. It's basically like having a fly land on you. You don't even notice the fly usually, let alone having its weight be detrimental to you in any way.

Another way of putting this is to look at the "what would happen if everyone on Earth jumped at the exact same time?" The answer is simple - nothing.