Submitted by [deleted] t3_zvf37r in Futurology
The consumer-based society we live in as a global community thrives on using raw materials to build products which are then discarded once used up. Producing such consumable products takes primarily a large amount of raw materials, but can in some cases leverage small amounts of recyclables. As raw material is turned into a “soup” of waste, there exists a cutoff point, a watermark, beyond which humanity will no longer have the ability to colonize other worlds because the raw materials needed for such endeavors would be used up. The entropy of materials available for production will grow until humans even lack the ability to leave the planet - another watermark. Further still, at high enough entropy humans will no longer be able to produce anything other than what can be grown or honed from plain rocks. At that stage, humanity has essentially gone full circle back into the Stone Age, with the exception being that land will be far more toxic, and there is no return to what is considered modernity (the materials required would no longer exist in a usable form).
xxDooomedxx t1_j1ov377 wrote
I think we will have colonised other worlds long before we reach this watermark. And then we can use the resources of those worlds to continue our expansion