Incorrect on both counts. Real communication must not be written down but it must be real. 97% of human communication is non verbal via live human interaction. A letter can be more descriptive than a text and may require 2x to 4x the words - indicating higher brain capacity - but both will not give hearing clues. A phone call is better than both as the human brain can pick up infections at the subconscious level via hearing skills.

As almost all real communication is based on things that are not conveyed in texts or emoticons.

Look at this list and how many are easily expressed by the vast majority of the human race with modern communications. Hitting the LIKE button on FaceClone or texting via TWITter does not undo the communication skills adopted and rewarded over the entire human experience.

They include:

Body Movements (Kinesics), for example, hand gestures or nodding or shaking the head

Posture, or how you stand or sit, whether your arms are crossed, and so on

Eye Contact, where the amount of eye contact often determines the level of trust and trustworthiness

Para-language, or aspects of the voice apart from speech, such as pitch, tone, and speed of speaking

Closeness or Personal Space (Proxemics), which determines the level of intimacy

Facial Expressions, including smiling, frowning and even blinking

Physiological Changes, for example, sweating or blinking more when nervous.

Add in scent and touch which certainly can not be conveyed electronically. As a younger man I could always pick up the scent of a woman she could not control. Not sure if it was a pheromone or some other scent but when you dance cheek to cheek you can pick it up like an alarm bell. You just can't unwire all that in a single generation.