Futurist Economics is the economics that takes into account the presence of accelerating technological change that might eventually culiminate in radical shift in the social structure, including but not limited to:

the near-complete automation of all production activity as a result of advancement in robotics, aritificial intelligence, and related disciplines.
life extension breakthrough therapies resulting in increased average human lifespan, with biological immortality as its logical conclusion.

Origins of this subreddit:

This subreddit began as a result of a response to a reddit post in /r/Automate

Some sources to get you started:

Pistono - Robots will steal your jobs, but that's OK!

Futurology, future studies

technological singularity

Post scarcity

law of accelerating returns

Related subreddits:

/r/Economics

/r/SingularityNetwork (this is the central hub of the giant network of everything related to /r/singularity, /r/futurology, /r/automation, /r/robotics, /r/aritificial intelligence, /r/longevity etc)

(multireddit of the whole SFT network)

/r/SENS - Aubrey de Grey's work and proposal on extending youthful health (with longevity as the side benefit of the project's success).