What If? 2: the book (by the author of Xkcd)

Ah! So this is what the mysterious countdown that went up around a month ago was ticking down to.

Love the author, hate the wait. More than 6 months till I can read the book feels like this is more teaser than I want. Not enough to sour me on pre-purchase, but definitely enough to grumble a little about it here on HN…