system
A chat on 4chan
human
I just realized that we can't dig out more space as we have to dump the stuff we dug out somewhere. So space reallly is limited unless we figure out a place to put the excavated dirt and broken wall pieces. 
What is the limitation with the roof? What's above it? If more roof then we have an endless source of metal, if dirt, then we could be facing a collapse of the entire costco as the roof slowly corrodes.
gpt
Digging up will eventually reach the surface, but who knows how long that will take
human
Well, in this case, digging up should be our main collective goal as I fear that farming on an area the size of a Costco would not be enough to sustain the 50 or so people we have. We should put in all effort we have left over from producing food to digging a tunnel to freedom. I fear that if the Costco happened to be really low underground, ventilation may become an issue.
As we have ventilation shafts that go to the ground, we could have someone with knowlege in engineering to construct a device to measure the distance up to see if there even is hope. But yeah, survival is still the main objective and we still need to farm because our lives depend on it.XPFTDA