Our new timeline maps out a vast set of complex, interconnecting plans leading to a solar system with major colonies on four worlds. When the timeline ends, there are thousands of ships trading megatons of goods from Mercury to Titan. It costs about as much to go to the Moon as it costs to fly half-way around the world today. Cities are being built at a high clip across the face of the Moon by robot crews that are only lightly overseen by a small number of people. We’ve launched small probes to other stars. There are satellites around every significant celestial body in the solar system, and rovers on all such bodies with a solid surface. Political and economic power has shifted dramatically into space. Our sense of who we are has changed forever.