Petty pedantry alert (for fun and info): 100 septillion years ago is invalid, the universe is not quite 14 billion years old, homo sapiens are less than 500,000 years old and homo sapiens sapiens less than 50,000 years old.
Glass half full, humanity collectively has move wealth than ever and poverty as a whole is reducing massively.
Glass half empty, not all demographics are benefiting from this in proportion to others, many are having their access to this increased overall wealth frozen and even reduced.
There’s good and bad, and there’s relative extents of both.
We’re greener than ever before? I seem to remember deserts are growing in size and unless something huge has changed we’re still cutting down rainforests far quicker than we’re restoring them, sea levels are rising and they have more and more rubbish thrown into them, huge coral reefs are dying, certain cities in the world don’t have safe air to breathe, but yes - renewable energy is on the increase and fossil fuel usage is cleaner. What is the net overall increase or decrease? I would be very surprised if we were more green than ever before, but yes, at least there are valid glass-half-full arguments. Complacency due to them is a bad idea though.
The real question, which I don’t think is clear at all, is whether all the glass-half-full facts are because of Capitalism.
Has Capitalism been around while many modern improvements have happened? Of course, to various mixed extents in different places. That’s not the same question though, and it’s not proof that all other possible economic models would have been worse had they been in place instead.
In my estimation, many aspects of the kinds of Capitalism we’re seen have been highly valuable, but I also believe that such benefits aren’t guaranteed to last uniformly just because they were appropriate over a certain time period. These things need constant revision, and alternatives need to be tried and tested relentlessly - just as in all other parts of nature.