Interesting post. However, I do not agree completely in the conclutions on the end.
I am a student in math science, what involves me into an enviroment of researchers of this area. In this way, I am able to see that this people's work is based on beliefs that 'does not exists', I mean, they work on abstract ideas that generally only exists in their minds. And now I wonder, does their efforts 'does not pay rent'? They live from structures and stuff that, in the most of the cases, cannot be found in 'real life', and so, according to the article's conclution, this would not be worth thinking, as is not flowing from a question of anticipation (what were we anticipating if it does not exists?).
Maybe I'm missunderstanding the post, or maybe it is just focus in other life experiences.