Injustice 2 Explained: What Does The Ending Really Mean?

In the middle of the game, a ray shot by Brainiac at Victor Stone gives birth to Grid, who separates himself from Stone and even considers himself better, since he has no emotional capacity. He's just as the technologically-enhanced superhero, let alone of what makes Cyborg - as contradictory as that sounds - human.

The same is the case with his creator, Brainiac, who considers himself superior to others because he believes solely in knowledge, and is strongly devoted to achieving it. Even if it means destroying whole planets, Brainiac doesn't want to learn, he just needs to know. It's a key difference.

Brainiac owns a sort of mini-zoo, consisting of all the planets he devoured and destroyed, which doesn't actually allow for making proper observations. Animals behave differently in enclosures than in their natural habitat. In this, humans are similar to them. This proves that Brainiac's knowledge is actually incomplete, and ultimately leads to his downfall.

In this case, knowledge is the opposite of understanding.

The crucial question is: Is it better to destroy something in order to learn about it immediately, or rather spend time watching it, and draw conclusion based on its actions? The second method is more time-consuming, demands more resources and attention, but is more rewarding and, more importantly, allows the object of our study to live on.

In the end, what's the point of learning about something that no longer exists?