This promises, at first, to be a magical realist novel. Timeskipper meets God, who tells him he has two clocks - the one we all know and an inner clock that enables him to see the future. So far, so promising. From there, though, it becomes a rather long and rambling coming-of-age story, and the glimpses of the future, the encounters with God and various other beings, slip in and out of the story with no real impact.
That's not the only reason I found this disappointing. There are far far too many characters. Some are introduced so briefly as to be little more than ciphers, names that crop up now and again. When something happened to one fo them, I didn't care, because I hadn't a clue who they were and wasn't interested enough to plough back through what is a very long book to find out.
There are interesting sections, which is why it just scrapes its three stars. The passages set in the 60s are interesting, as is the general idea of progress and the corruption that often goes with it.
There is a subtext, too, which non Italian readers will probably miss, until they read the afterword (but don't read it first as it contains spoilers). Certain events in Italy's history are quite significant, with references so obscure most would miss them anyway, I suspect.
There isn't really much in the way of plot development, and what character development there is is rather marred because the characters are so briefly and unsatisfactorily drawn to begin with. And there are so many of them! You need a notebook to keep track.
All in all, it noodles along, sometimes interesting, often not, sometimes satisfying, sometimes frustrating. There might be enough here for most, but it hasn't made me rush to read any of this author's other books.