We've been modifying the biological world at the level of DNA for thousands of years. Somehow there is this new fear of what we already have been doing and that fear has limited our ability to provide real solutions.

I'd like to see what fraction of things that chemists have figured out we could actually teach nature to do. Then we really could replace chemical factories with bacteria.

Silicon is all around but it's tied up in rocks... with these very strong silicon-oxygen bonds that living systems would have to break in order to use silicon.

Frances Arnold Quotes