"Ideas aren’t getting harder to find and anyone who tells you otherwise is a coward and I will fight them": https://www.experimental-history.com/p/ideas-arent-getting-harder-to-find
This is one of the reasons I love reading "New Scientist" , it is a broad survey of current science and I find it makes me pretty hopeful about progress.
Sure there is a lot of incremental work but there are also new ideas, many of which are fascinating to read about.


