If we only knew what we already know…
we can extend physical life indefinitely
We can regrow limbs organs etc
https://www.youtube.com/watch?v=HKWyB9qLP_s
we can travel between planets are near zero energy cost
https://www.youtube.com/watch?v=1-6Str9V26g
mine asteroids for raw materials
https://sbir.nasa.gov/content/situ-resource-utilization-space-manufacturing
move manufacturing and industrial processes to space
https://www.esa.int/Enabling_Support/Preparing_for_the_Future/Discovery_and_Preparation/Off-Earth_manufacturing_using_local_resources_to_build_a_new_home
Computationally reconfigurable factories can manufacture any product including other computationally reconfigurable aka "universal factories.
This is what Elon said he would do - "I'm not building a battery factory - I'm building a factory to make other factories" A universal factory can build any product including copies of itself. Sound familiar?
These is all not classified technology that already exists and has been tested and proven.
>From 1996 to 1999, Martin led the mission design of the Genesis Discovery Mission. The Genesis solar panel wind sample return trajectory is one of the most unique and difficult to be flown by JPL in recent years and due to the fact that IPS trajectory requires no deterministic maneuvering after launch, it was the first mission designed with dynamical systems methods. Genesis was launched on August 8th, 2001
https://www.whydomath.org/node/space/people_mlo.html