In the SAT colony I did not build any life support buildings. In SASH, with 50%+ life support there is a chance that goods producers in the colony will produce some Dark Matter and there is a chance that the exploration sites will produce 4X Dark Matter. The downside to having life support buildings is that they take space away from residential buildings and goods producers. I haven't read any comments about how good the chances have been for getting DM in the colony or 4X at the sites. Question....what seems to be the best strategy for the colony? Forget about life support and maximize the production of SASH goods? Or, get to 50% life support, build enough residential buildings to supply credits to the sites, and fill remaining space with goods producers?