@lkngrrr @DarcMoughty I did a long post on material science a bit back.
Key line: "As science accelerates, we are discovering fascinating new materials which promise to revolutionize what we build,
how we build it, and what it is we can actually build."
I don't think we run out of carbon based material any time soon. And many of the majors recognize the opportunity isn't in carbon, but in materials. See the Aramco post too.
I am optimistic most of all because of science!
https://jimcarroll.com/2023/02/the-big-future-new-materials-science/