Yeah just some simple concepts though like how they mention slingshotting, which of course refers to the slingshot effect
And with blackholes, and how they're formed as a consequence of a collapsed star, and with reference to the horizon
Same with the neutron star they were planning to slingshot around, and how they avoided it because of time dilation, also I heard from somewhere that a teaspoon of dirt from a neutron star is 10000 tonnes, so yeah it would have a pretty intense gravitational pull
Also with how time dilation occurs
And that massive wave being a consequence of Gargantua's gravitational pull
Have I missed anything?