Heres a scholarly article on silica.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7345352/
At times i read many of articles or listen to podcasts when driving, or watch specific science related videos with hopefully knowledgeable growers , breeders , and scientists alike.
At some point i heard or saw someone speaking about silica. What they had mentioned is that silica can be absorbed and deposited in place of carbon when carbon sources are low. Part of the building blocks of life.
The above article explains better then i ever could