On Monday, the Nasdaq crossed 5000 for the first time in 15 years. Here is what CNBC’s Carl Quintanilla looked like in 2000 via @IvanTheK. The last time the Nasdaq composite index was north of 5000. #nostalgia #bubble #hair pic.twitter.com/tQp0f0hIBM — Ivan the K™ (@IvanTheK) March 3, 2015 Join the conversation …