The case against conversational interfaces The case against conversational interfaces
We are significantly faster at receiving data (reading, listening) than sending it (writing, speaking). This is why we can listen to podcasts at 2x speed, but not record them at 2x speed.
[Roughly estimated: mobile typing ~30wpm; writing/typing ~60wpm; speaking ~150wpm; reading ~250wpm; listening ~270wpm; thinking ~1000–3000wpm.]
[Gestures and facial expressions compress data so we can trade specificity for speed.]