When you search for your lost cell phone, do you think "I think I put it here" with real words or just in your head? This situation is called inner speech. Did you know that not everyone has inner speech? In this week's episode, Haikal and Erika invited Renadia Kusuma to talk more about this phenomenon.

You can read more about it on https://www.economica.id/2020/04/28/inner-speech-can-you-hear-voices-inside-your-head/