4 ideas
In space, the cost of a trip is the change in velocity it requires, not the kilometers covered. Because Earth's gravity well dominates that cost, some near-Earth asteroids are energetically 'closer' than the surface of the Moon, even though they are far more distant physically. Measuring by delta-v rather than distance changes which destinations look feasible.
Carbonaceous asteroids contain water that can be extracted in place and split into hydrogen and oxygen propellant. Fuel made where it is used does not have to be lifted out of Earth's gravity well, which is the most expensive part of any mission. Mining the first propellant in space is therefore the step that makes every later space venture cheaper, more than any metal the asteroid holds.
The billionaire financier argues that a global economy built on compounding debt requires perpetual growth. On a closed planet, that growth must eventually come from depleting finite resources. Opening access to space resources is framed as the only way to keep growth going without collapse, which turns asteroid mining from an adventure into an economic necessity.
James Tighe, an elite cave diver, becomes famous after surviving an earthquake that traps his team deep in China's flooded Tian Xing cave system. The billionaire Nathan Joyce then recruits him for a privately funded crewed mission to mine the near-Earth asteroid Ryugu, valuing his proven performance in a lethal, isolated, resource-limited environment.