Weird book utilises staccato illiteracy of Tweeters to explain cosmology. Here's one sentence: "VLBI [Very Long Baseline Interferometry] mere factor of 2-3 away from 'seeing' Sagittarius A*'s event horizon."
Probable intention is speaking to astro geeks in their own lingo but it left this reviewer no wiser even with the teaser "Why doesn't the Moon fall down?"
Considering self-imposed limit of 140 characters per par, authors are wildly profligate: "Sun is billion, billion, billion tonnes mostly hydrogen gas. But a billion, billion, billion tonnes bananas would be equally hot."