Bunk.
Poorly adapted beasties tend to die early. Better adapted beasties tend to live long enough to pass on their better adaptations.
Give it a few million years (which I guess for your purposes can be compressed into the time since October 4004 BC) and the world is filled with the better adapted structures.
No planning or thinking required, just reproduction and environmental culling.
Doesn’t explain, though, how something dead initially came to life, or how sexual reproduction began.