Nevermind struck a chord with a generation of young people who grew up in the aftermath of the social rebellion of the 1960s. this generation is often referred to as what? "generation x" "the blank generation" "the pepsi generation" "the grunge generation"

The generation being described above is the "Grunge Generation". Those who grew during this era are called to be the "Grunge Kids". Those who belong in this generation have emerged during the 1980s and started just right after the social rebellion that occurred in the 1960s. Hope this answer helps.

It is meant that like tapestry scientific theories often need to pull out since they are not relevant and often times the whole chain of theories may be pulled out.