The reason I see us continuing to progress is: we have
tons of spare intellectual resources. I can't imagine a world where millions of people live in rich countries, who can code, who can read scientific publications, that just stops progressing. Of course the
system we've built is constantly evolving, so some things will certainly collapse. E.g. the web will be more and more partitioned - not everything just gets better and better.
But I don't see us stopping to make progress any time soon, far from it, and the network-effects of the various things to come will change the face of the earth to a completely unpredictable degree - every couple decades. 2060 is absolutely unpredictable, letalone 2080 or 2100. Rising sea levels notwithstanding.