system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why haven't we gone to the moon since 1972?

Our technology has advanced exponentially since 1972, but we have yet to go back to the moon. Is there a reason for this?
gpt
Technology has improved dramatically, but physics has not.  The cost of getting a kg of payload to orbit is still incredibly high.  Going to the moon is very expensive, and so far no one that can afford to do it has determined that it's worth the costs involved.