WEED = STRAIGHT EDGE

Did marijuana really inspire a whole movement? Maybe. I never really looked at it that way before, until a friend mentioned what another friend used as an argument saying so. I am not a pothead, nor am I straight edge, so I claim no side or bias. All definitions taken from google.com.

MARIJUANA

A drug, usually smoked but can be eaten, that is made from the leaves of the cannabis plant. The main psychoactive ingredient is THC.
"A cannabis taker smokes because it gives him/her inspiration, not to escape from reality." - drugs-plaza.com

PLUS

BAD BRAINS

An American, all-black hardcore punk and heavy metal band, originally formed in Washington, DC in 1977.
"'Sacred Love' is a fascinating track, if only for the fact that H.R.'s vocals were recorded over the phone, as he was in jail at the time for marijuana possession" - popmatters.com
We all know that Bad Brains were into smoking weed.

(note: HR... totally high!)

PLUS

MINOR THREAT

A short-lived hardcore punk band from Washington DC. Not only did they define the hardcore ethic, they unwittingly coined the genre term straight-edge.
"I saw the Bad Brains for the first time in June of '79... They were the band. They moved me." - American Hardcore by Steven Blush.
As well, their first show was in December of 1980 opening for Bad Brains in DC.

(note: even Ian can see this, look at him!)

EQUALS

STRAIGHT EDGE

Basically, without weed there would be no Bad Brains. With no Bad Brains, there would be no Minor Threat. With no Minor Threat, there would be no straight edge (Thanks Omar).

All in all, I just thought the idea of all this to be hilarious. Anything could have molded the history to create straight edge, and not the way I have laid it out. Not a bad argument though.