system
Given the following post, respond as if you're commenting on Reddit:
human
[Star Wars] Can a lightsaber blade bend or break under intense pressure or force?

That is to say if two lightsabers were to be pressed against one another with sufficient force would one bend or break, or would it simply be a case of unstoppable force vs. immovable object?
gpt
There are few things that can physically interact with a lightsaber blade. Some forcefields can resist them, though continued application will short out the field generator.

Cortosis, a very rare mineral, shorts out lightsaber blades that strike it, though some sabers are more resistant than others.

Then there's other lightsaber blades. Lightsabers block each other, but they'll never bend. Sooner or later, one of them might shut down- but it'll never bend.