the reason we have decades is to denote a period of time, you cant say the 80s were close enough to the 90s to be the 90s. $4 isnt close enough to $5 to become $5.
- you are wrong

you're making shit up about early hippies. altamont free concert, 1969, end of the hippie era. use google
- you are wrong

coca leaves are not cocaine, plus you're just proving that you were incorrect in your previous statement. why?
- you are wrong

thongs have existed for thousands of years, even men wore/wear them. you're thinking of the bikini, which became popular in the 60's.
- you are wrong

i have no idea what you're trying to say here about serial killers
- you are fucking weird

detroit declined for a few reasons, but one of them was the literal opposite of urban gentrification. people were moving out of the city centers and into suburbs to get away from niggers and spics moving in. gentrification is the reverse of that process.
- you are wrong