With more and more people actually stepping inside my dimension, I actually decided against instantly moving back to transfer even more people. With the time dilation in place, even if I were to be out of for only a few hours necessary for me to get there, help them create some more canoes and get back with a new batch of people, all the time would be doubled for those already in the small world of mine!\
Sure, I could just tell them to somehow survive for about one or two days without shelter or food, but with how my warehouse in the outside world was already filled to the brim with resources, I could as well just spend a single hour, creating more of the housing for everyone!