Radio 4 in Four - Has the digital world turned our private speech public? - ÃÛÑ¿´«Ã½ Sounds

Radio 4 in Four - Has the digital world turned our private speech public? - ÃÛÑ¿´«Ã½ Sounds
Has the digital world turned our private speech public?
How much of what we do online is our inner speech - talking to ourselves?