Just so you guys know I believe it to be rather convenient to not want to concede that because you can't explain the driver or abiogenesis that somehow it doesn't matter.It doesn't matter to evolution, the subject you started a thread on. It's a fascinating topic in its own right all the same.
Science doesn't work like a religion. Saying 'don't know' is the driver to try and find out. What's at the bottom of a black hole? We don't know. Therefore black holes don't exist? Or reason to fund research into finding out?