It's impossible for six consonants to be strung together without a vowel because:
* Consonants are formed by obstructing airflow. This obstruction requires the tongue, teeth, or lips to be in a specific position, which inherently restricts airflow.
* Vowels are formed with open airflow. They allow air to flow freely through the mouth, creating the sound.
To create a word, there must be alternating patterns of consonants and vowels to create the necessary flow of air for pronunciation.