I wrote a whole post, very long and researched, yesterday. Took in excess of 4 hours. Then the Autosave feature managed to help it disappear, all but the last two paragraphs.
I'm a little disheartened, but I'm going to recreate the post in the next day or two. Sorry for the delay... just have to get over the shock. And I do wish Blogger's help section was less depressing.