hooberus, there were quite a few things that biologists used to think that generally they don't anymore. that was 1949.
Yes it was written in 1949, however there has been no reason since then that requires the origin of life to necessarily be excluded from "evolution". (other evolutionists since then can also be cited).
i am not aware of many modern evolutionary biologists who consider origins a problem of evolutionary theory any longer.
Generally modern evolutionary biologists have chosen to "deal" with the problem by simply defining it away as not a part of "evolution" . (see for example the glossary definition of "evolution" in Mayr's book "What Evolution Is"). However, the fact also remains that other statements by modern evolutionists seem to include it: For example on page 203 Ernst Mayr in his same book: "What Evolution Is" wrote: "In spite of its gradualness, macroevolution is characterized by numerous major inventions, which many authors consider to represent decisive steps in the advance of the living world. It begins with the inferred transitions involved in the origin of life and the development of the Prokaryotes. . . . " The same book ("What Evolution Is") in chapter 3 also starts with the origin of life, moves on to prokaryotes, then to eukaryotes, multicellularity, animal phylogeny, etc. (something fairly common in dedicated "evolution" books).
when you think about the theory of evolution, it is obvious that it's all about bio-diversity in explanatory power. origins, really, don't have anything to do with bio-diversity.
Evolution can deal with more than "bio-diversity" (it includes things such as the origin of eyes doesn't it?).
origins are indeed an area of hypothetical speculation in the community of cosmology and bio-chemistry. if a creationist thinks it's a "problem for science", then they are not looking at the rafter in their own eye.
What rafter?