"Thirty Years Makes a Difference" 1970: Long Hair 2000: Longing for hair 1970: The perfect high. 2000: The perfect high yield mutual fund. 1970: Keg. 2000: EKG. 1970: Acid Rock. 2000: Acid Reflux. 1970: Moving to California because it's cool. 2000: Moving to California because it's warm. 1970: Growing pot. 2000: Growing pot belly. 1970: Watching John Glenn's historic flight with your parents. 2000: Watching John Glenn's historic flight with your children. 1970: Trying to look like Marlin Brando or Elizabeth Taylor. 2000: Trying NOT to look like Marlin Brando or Elizabeth Taylor. 1970: Seeds and stems. 2000: Roughage. 1970: Paar. 2000: AARP. 1970: Being caught with Hustler magazine. 2000: Being caught with Hustler magazine. 1970: Killer weed. 2000: Weed killer. 1970: The Grateful Dead. 2000: Dr. Kevorkian. 1970: Lots of sex without much conversation 2000: Lots of conversation without much sex 1970: Rolling Stones. 2000: Kidney stones. 1970: Being called into the principal's office. 2000: Calling the principal's office. 1970: Screw the system! 2000: Upgrade the system! 1970: Peace sign. 2000: Mercedes logo. 1970: Parents begging you to get your hair cut. 2000: Children begging you to get their heads shaved. 1970: Take acid. 2000: Take antacid. 1970: Passing the driver's test. 2000: Passing the vision test. 1970: "Whatever" 2000: "Depends"