If he knows everything, indeed he knows what pain is like. But since he is 100% perfect he doesn't need anything, so he doesn't need to care that it hurts, and since he is omnipotent it cannot hurt him either. So despite his knowledge and the fact he knows how much horror is in the world, why would he care? He could intellectually know how bad the pain is, without actually giving a shit because he's perfect, and he therefore doesn't need to. He doesn't need to care about anything, he's, apparently, perfect. Emotion is petty to him, everything is. In fact, he doesn't need to do anything if he's perfect. So 1. Why would he need to create the universe in the first place if he was perfect already and didn't need to, and 2. If creating the universe is what fulfilled him, and made him perfect, then from then on, being perfect, he wouldn't need to actually do anything further, so no wonder he doesn't bother to do anything. He's done his job and he's apparently perfect and 100% fulfilled now.
If he doesn't give a shit, that doesn't make him selfish. Because he doesn't care about himself either if he's perfect, he doesn't need to. He's fulfilled. He doesn't need emotions. He's like a computer.
A super-perfect computer could understand how emotions feel, without needing to actually care because it's perfect. Emotions would be insignificant to it, it would merely know how they feel because it knows everything, because that's part of it's infinite perfection.
EvF
If he doesn't give a shit, that doesn't make him selfish. Because he doesn't care about himself either if he's perfect, he doesn't need to. He's fulfilled. He doesn't need emotions. He's like a computer.
A super-perfect computer could understand how emotions feel, without needing to actually care because it's perfect. Emotions would be insignificant to it, it would merely know how they feel because it knows everything, because that's part of it's infinite perfection.
EvF