Agreed with this. In all three of Weirs books, the tone/atmosphere is almost continually lighthearted. You can interpret that as a lack of emotional depth, but

Agreed with this. In all three of Weirs books, the tone/atmosphere is almost continually lighthearted. You can interpret that as a lack of emotional depth, but for me it also shows Weirs laser like focus on stuff he is good at writing: resourceful application of "basic" but real science to solve problems.