> Signs of carbon-based life - who is to say all forms of life are carbon-based? There's a limited number of elements, and their abundance in the universe decr

> Signs of carbon-based life - who is to say all forms of life are carbon-based? There's a limited number of elements, and their abundance in the universe decreases rapidly beyond the first few. Carbon is by far the most advantageous for life due to its vast ability to form complex molecules. Silicon might be a distant second. If there is other life in the universe, and if there's nothing special about us, it might not all be carbon-based, but it's extremely likely that a large amount of it will be.