system
Given the following post, respond as if you're commenting on Reddit:
human
Eli5 Why are we so terrible at comprehending large numbers?

When somebody says there are 100,000, people there your thinking “wow that’s a lot of people” but if somebody tells you there are 10 million people there your reaction is still the same.
gpt
Your brain needs some physical comparison, not just abstraction.

100,000 people is like two packed stadiums, or one enormous stadium.  You’ve experienced something like that.

2000 miles is the drive from Chicago to the tip of Florida.  You know about how long that takes.

But how far is 700 million miles?  How big is a crowd of 2.7 billion people?  There’s no reference, it’s off the scale.