Anonymous A started this discussion 7 hours ago#139,241
Think about it, silicon is beneath carbon on the periodic table. That means silicon can create the same chemical bonds with other elements as carbon and carbon is the building block of life.
We breathe out carbon dioxide. What if on an alien planet the aliens breathe out silicon dioxide?
π (OP) triple-posted this 5 hours ago, 3 minutes later, 1 hour after the original post[^][v]#1,471,488
The idea of silicon based life is based on the idea that silicon can make the same bonds as carbon, which is true, but these bonds do not have the same strength which means they do not have the same energy requirements to make and break, and if you replace all the carbon atoms with silicon atoms in biomolecules the resulting molecules do not have the same properties as the original molecules. Also: oxygen is the third most abundant element in the universe and silicon in the presence of oxygen forms silicon dioxide which is what rocks are made from so it wouldnβt be readily available to be used by life on any planet.