Most Materials Seem to Obey a 'Rule of Four' And Scientists Are Utterly Stumped

<img width="128" height="52" src="https://www.sciencealert.com/images/2024/04/molecule.jpg" alt=""/>
Why four?

https://www.sciencealert.com/most-materials-seem-to-obey-a-rule-of-four-and-scientists-are-utterly-stumped