Perhaps the target audience is in more of a hurry than I am. But some of the topics were too summary and brushed over some explanations that could have been given in pretty short form, so may be confusing if you have not already done a fair amount of reading. Was interesting to see how many things were addressed as "we don't know". Still, if you only want a smattering to impress your grandkids, the explanations are pretty clear to the extent they exist.The irritating, to me, part was that the author was very needlessly dismissive of anyone with a Christian approach to any of this. Present your facts and let them speak for themselves. Don't go out of your way to dismiss anyone who thinks there may be something more than random chance at work as a deluded or even ignorant Luddite. Those who agree with the author on that point will probably rate this 5 stars. I believe we can have a civilized discourse but the author is clearly not interested.