Silicon-based life on Earth doesn't make sense, but perhaps it would in some totally different environment.

In the universe of possibilities that exist for life, we've shown that it is a very easy possibility for life as we know it to include silicon in organic molecules. And once you can do it somewhere in the universe, it's probably being done.

Enzymes are masters of chemistry. They evolved over billions of years to perform specific biological functions. They make complex materials with virtually no waste.

Frances Arnold Quotes