system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why are we so eager to go to and colonize Mars when we haven't been to the moon in over 40 years?

I just seems like we're jumping the gun. Why are we going to colonize Mars when we haven't even mastered the moon?
gpt
Sending a manned mission to the moon again would involve a huge investment of resources and time, without much gain in terms of scientific knowledge. Not to mention, we have been to the moon in the past 40 years (the Chinese did it just last year), just not with manned missions, and even then, that's been done six times already. If we're going to put in the effort, it might as well push things into a realm that hasn't been accomplished before.