What is something that only exists because of introverts?

1. "Appear offline."
   — CanadianFalcon


2. There's this japanese ramen joint called Ichiran that has individual "booths" that you eat your meal in. You sit down in front of a curtain and the server takes your order without seeing your face.
   — Voittaa


3. In Japan, you can go to restaurants and order via a vending machine.
   — jjake101






4. Online chat support instead of just the option to call in. Being on the opposite end too I work for a call center and went from taking calls to taking chats, my days are much less anxiety inducing
   — dementored


5. Ordering pizza online.
   — noelg1998


6. The public agreement: " Don't talk to me when I have headphones in". Now I can avoid interaction with everyone, everywhere, without a word.
   — impulsivegrl






7. I took a public speaking class... Online. So, that.
   — JMS1991