I am aware this blog is not displaying properly, but it has nothing to do with me, and I have no idea what (if anything) to do about it! I shall watch and wait.
Update - Thanks to commenter Islanti who diagnosed the problem and told me what to do!
The root cause is apparently the new updated and 'improved' version of blogger; which allows such glitches to happen without the editing safeguards that existed for the previous dozen years, at least; and which I therefore took for granted.