It turns out synthesizing DNA is very difficult. There are tens of thousands of machines around the world that make small pieces of DNA - 30 to 50 letters in length - and it's a degenerate process, so the longer you make the piece, the more errors there are.

We find all kinds of species that have taken up a second chromosome or a third one from somewhere, adding thousands of new traits in a second to that species. So, people who think of evolution as just one gene changing at a time have missed much of biology.

I am absolutely certain that life can exist in outer space, move around, find a new aqueous environment.

Craig Venter Quotes