>>10886462he's right though
platinum group metals will be a very good short term money maker, but they will inevitably deplete in value as you send loads back
Space isn't just for mining though, there are lots of industrial opportunities as well, like construction of space structures/probes/ships, manufacturing gravity sensitive shit (crystals, proteins)
and then you have the almighty tourism industry, which will only increase exponentially as space shit expands
science, while holding far less weight than you average soi creature would insist, still holds some, and will be able to be yet another source of income, universities would very much enjoy sending some of their experiments and personnel into space without breaking the bank doing so
space shouldn't be regarded as a short term thing, it's going to be a permanent and perpetual thing