[wavefunction]

I think that's quite an interesting conversation to have, personally. You, for example, assign a great deal of importance to things like building skyscrapers or going to the moon but given enough scale those activities are meaningless when compared to the other animals running around on this planet.

[cynical_sheet]

You made a great point. He puts building skyscrapers into a definition of greatness(an abstract term). But, why is that great and ants building they own habitats not great? They are small, so you can't expect them to build big habitats for humans.

Imagine saying that humans can't live and thrive in radioactive environment, like some fungi in Chernobyl do and therefore they are not great. Greatness means being able to live in radioactive environment.