It references evergreen trees, the ones that don't lose their leaves in the winter and are green year-round, in this case it says the essay is applicable to many scenarios and not just a few, like how normal trees are only green for parts of the year
I've been seeing the term "evergreen" used a lot recently. Is it new zoomer slang?
17th century zoomer slang
Zooming was slower back then, but they still did it.
It references evergreen trees, the ones that don't lose their leaves in the winter and are green year-round, in this case it says the essay is applicable to many scenarios and not just a few, like how normal trees are only green for parts of the year
people go through fads even with older idioms. this one has been around for ages and it might be as old as modern english.