New article from The Debrief. Interesting take away:
“One of the foundational assumptions (https://link.springer.com/book/10.1007/978-3-319-97658-7) is that extraterrestrial life would be carbon-based, much like life on Earth, because carbon’s chemical properties make it uniquely suited to form the complex molecules required for life. Some astrobiologists, like Dr. William Bains of the Massachusetts Institute of Technology and Dr. Dirk Schulze-Makuch of Technical University Berlin, have also argued (https://pubmed.ncbi.nlm.nih.gov/32955925/) for the possibility of silicon-based life, given silicon’s chemical similarity to carbon.”
The silicon theory seems to fit with encounter reports of the classic Grey NHI, and the general assumption that these entities’ physiology resembles more a type of bio technology.