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Welcome to the on-line forum for Biology 103.  This is a place for thoughts in progress, a place to leave thoughts and questions that others may find useful and find ones that you might find useful, a place for conversation.  Join in, and let's see what we can make of life together.  If you're registered for the course, be sure to sign in before posting.  Others are welcome to join in as well but posting of comments will be delayed to check for spam. 
You're free to write about whatever has struck you.  If you need something to get you started though, what do you think of the idea that it is because things are falling apart (becoming more probable) that we and other improbable assemblies (including DNA molecules) can exist?