We are at the verge of finding spaces in our space and we can live thousands or millions years at our wants without dead. This only leave us with one thing in mind-expanding our reach on our space and the spaces we find. Spaces are like continents of today e.g. Europe, Africa, Pacific, America etc. This is a complete universe in one solar system(space) e.g. sun, moon, earth, stars(or galaxies). So imagine finding ten spaces, then we would have innovation problems because of distance and different of climate on all spaces, scarcity because human being are all on one space that means we do not have enough people to occupy all space but considering no dead we will eventually come to occupy all spaces with time, running security of spaces and societies e.g. not favoring either but making sure we all have same justice system, monetary system, equal technology and social lives. There is another thing we still need to be clear about and that is on our universe, there are earth like lands on our far reaches or on the other side of the solar system because we are at exactly same distance from the sun and so could there be on the Eastern, Western, Southern and Northern side of the sun that we still have to colonize and send human to e.g. mars etc. We just need to train more people about space and lands we will have and how we can move from one planet/space to another and settle on them without climate interruption instead of focusing on businesses, agriculture, tourism etc. Remember the time when Europeans migrated to all parts of the world from Europe to Africa, America and pacific not discovery. They just get enough people in the boat and transfer them from Europe to any continent at the time and that was how primitive we were as human and now we have our next migration from our Earth to Earths around our solar system. We do not have to have space skills, experiences, training and qualified we just need a system on all Earths to be favourable for human and send some of us from this earth to the rest of the Earth we will make.