Financial Times: Twitter is considering tinkering with the service to allow users to write messages as long as 10,000 characters. Creator Jack Dorsey wants to show that nothing is sacred at the company as it revamps itself in search of new users. But analysts are concerned that Twitter’s move to change the character limit on tweets could alienate existing users. “It’s like Elon Musk saying he will be making a petrol-version of Tesla’s model S electric car.”