Sheeana and Duncan and their crew would travel in the no-ship Ithaca until they had navigated to an interface between our membranous universe and the multiverse. Along that permeable edge, they would seek a porous wormhole to spiral into our neighborverse. The osmosis of moving between one universe and another with its own unique physics, would put considerable physical pressures on the humans to adapt to their new environment. Most would be naturally superhuman enough to morph successfuly. They are the Adams and Eves of a new kind of humanity.