There are more potential combinations of DNA [physical forms] than there are atoms in the universe.
![There are more potential combinations of DNA [physical forms] than there are atoms in the universe.](http://cdn.quoteddaily.com/images/carl-sagan/there-are-more-potential-combinations-of-dna-physical-forms-than-there-are-atoms-in-the-universe.jpg)
There are more potential combinations of DNA [physical forms] than there are atoms in the universe.