system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5:Why can't we just use a telescope to check the moon for an American flag?
gpt
You'd need a telescope at least ten times the size of any that humans have ever built.  We don't have the ability to make mirrors or lenses that big at the moment.  A flag is incredibly tiny, and the resolving power of our scopes doesn't come remotely close to the requirements.