Well, for one thing, there is no such speculation because we CAN replicate chemical component processes in the lab, something that we can't quite yet manage for DNA formation and animation.
Why is there no speculation about intelligent design of chemical elements -- they manage to evolve in discreet jumps from hydrogen through uranium and beyond? Imagine, if you can, the sheer improbibility of exactly the right combination of temperature and density occurring at exactly the right places and times -- in the vastness of the universe -- to transmute elements into "higher" elements.
If you can imagine a universe in which chemical evolution occurs, what intrinsic property of existence forbids biological evolution?
Well, for one thing, there is no such speculation because we CAN replicate chemical component processes in the lab, something that we can't quite yet manage for DNA formation and animation.