Tenet2020

Laura:
The bullet may not seem like much, but it's a simple machine...Lead bullet, brass casing, gunpowder. If they can invert that, I see no reason they couldn't invert pretty much anything. Even a nuclear weapon can only affect our future...An inverted weapon might be able to affect our past as well. [Opens a drawer of random items that have been inverted] Now that we know what to look for, we're finding more and more inverted material. Remnants of complex objects.

The Protagonist:
[Holds hand over one of the items that flies into his palm] What do you think we're seeing?

Laura:
The detritus of a coming war.