Invest News DetailToday's Zaman - Jack Welch, famous for building General Electric (GE) into the largest company in America, spoke at the Swissôtel on Saturday at the invitation of Turkcell, Turkey's number-one GSM mobile telephone service provider. Welch ran GE for 21 years before retiring in 2001. During his tenure as chief executive, the company increased its revenues four-fold and its market capitalization grew from $14 billion to $410 billion. Asked for his impressions of Turkey, Welch said he found the Turks to be engaging, exciting, and aggressive. "They want to be technological leaders and want to educate the hell out of everybody," said Welch. "Turkey's got so much potential, and people need to create a hundred, 200, 300 companies like Turkcell."