The general consensus seems to be that we should spend a long time in the caveman era; therefore, nothing very advanced should be coming about yet. Art, oral tradition, basic flint weaponry/tools, and maybe some leatherworks or pastoralism should be about as far as it goes for now I'd think. I mostly agree with this since more species need to be made and we need humans on Galbar, but once that's done I for one will want to quickly advance into the stone age and then have a few localized bronze ages for certain civilizations.