Call it an unsupported conclusion if it makes you feel better.

The fact that you are defending it as a fact is very likely the problem with your writing.

The FACT is, for one example, you can't know he was "shameless" about anything unless you somehow connected him up to one his Dianetics gadgets and read his mind. Or unless you have testimony from someone else who has read his mind. Do you? If so PLEASE PROVIDE REFERENCES AND FOOTNOTES. WE DON'T BELIEVE YOU BECAUSE YOU HAVE NOT PROVIDED SOURCES!!!!!!

If you can't know something, you can't state it as a fact and have any credibility as a writer of a "History."