Lest we forget, in around 5bn years the Sun will become a red giant. I doubt humanity will make it that far.
Cool images though
Cool images though
https://www.google.com/url?q=https://www.universetoday.com/1...
Or, something few consider, they might have plateaud way earlier, after most low hanging fruits have been achieved (fire, steam engine, electricity, nuclear power, computing, telecommunications) and the rest are diminishing returns...
"Limited by the laws of physicals" implies only physical laws are the limitation.
Whereas my response was more about being more limited (due to complexity, lack of resources, etc). So response was about a possible way lower envelope. I.e. not necessarily much more advanced than we are today, with diminishing advances in various areas.
So no "worldwide climate engineering" (except the clumsy stuff we already have), and no personal robot assistance of sci-fi style...