Re: Interesting read
Q: [But why is it necessary to animate every blade of grass waving around in the background while I play Farcry ?]
A: https://en.wikipedia.org/wiki/Escapism
People want to forget about their dull daily lives and immerse in something pleasant to the brain. Somewhere on the webs it is said that the visual cortex takes 70% of our brains, audio takes another hefty chunk of the remaining... so fooling them both will immerse you pretty handily.
And yes, my GPU also has more computing power than 2x my CPU, and guzzles just as much 'leccy as the whole rest of the system.
To almost complete the immersion of brain into pleasant things, you need a beer while playing.