system
Given the following post, respond as if you're commenting on Reddit:
human
[Interstellar] How come the crew doesn't consider that Miller has only been on the planet for a few hours (relative to them)?

Miller's planet is the planet that's just water.
gpt
Those missions were the first time that humans have had to deal with the consequences of time-dilation due to the dual sources of both proximity of an unprecedented gravity well of a super-massive black hole, as well as the fact that spacetime itself was being dragged along by Gargantua's rapid rotation, resulting in even further time-dilation due to the speed of the orbit.  
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At the time the mission was planned, there was precious little hard data on what to expect on the other side of the wormhole, so they couldn't fully anticipate the challenges the crew was going to face. It was up to the crew to make the decisions on what thumbs-up signals to investigate, and in what order, once they got through to the other side of the wormhole.  
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They made a hasty decision without stopping to fully consider all the implications, being overexcited about the initial thumbs up signal that Miller had broadcast reporting the presence of water, which was vital for life, and on the closest of the three candidates to the exit from the wormhole, to boot.