It seems to have been surprisingly easy to do.
Now that we have people like Venter creating new species by computer, it can't be too long before someone starts building life itself from scratch.
Of course this will still bring forth claims of intelligent design but it's chip, chip, chipping away at the idea that only a supernatural being can do it.
Once that is out of the way they will claim that only God can create the chemical elements that then go on to build life.
Just pushing god further and further back into the firmament.
Life, don't talk to me about life - Marvin the Paranoid Android