I'm guessing that it all started as the creationists say, then went on, as the evolutionists say...
Evolutionists have no idea why inert molecules should ever feel "compelled" to reproduce at all. Why bother consuming energy to create copies of a string of molecules? What is the force that 'forces" this to happen?
Elaborate and intricate processes that require the storage and release of energy in order to reproduce themselves require a motive force.
Once started, why continue? There is a motive force behind life.
"Everyone who is seriously involved in the pursuit of science becomes convinced that a spirit is manifest in the laws of the universe -- a spirit vastly superior to that of man." -- Albert Einstein