I like the overall but I got beef with this main loophole.
I like that is about science. But you gathered the best physicist and using nuclear explosions to propel a sail is one of the dumbest idea I have ever heard.
Do you know how unpredictable a nuclear explosion is? How are the best scientists going to calculate 300 unpredictable explosions.
Worse, the explosion happened near the tethers. It’s bound to fail.
How do you expect to decelerate an object going to fraction of light speed?
And you got the best physicist. - 2 stars.