My daughter's high school biology textbook presents the origin of life as possibly a series of chemical transactions unguided by any intelligent agent. The book asserts such a beginning for life in uncertain terms, which is good. This area of science should be tentative because there is no empirical way to test for the beginning of life as we know it. There is also no empirical way to test the assertion that all life is derived from a common ancestor. The greater part of evolutionist teaching is based upon reasonable conjecture, which in turn is made from the direct observation of change within limits.
Actually there is, and that involve producing the necessary stages in the laboratory. It would not be the first time a scientific understanding has required centuries of work.
The alternative to research is to give up on understanding.