Clairsentience and clairvoyance. It had the possibility of being tremendously powerful, especially in conjunction with the ability to move back and forth and out of time.

Isaac has no real concept of how dangerous. At all. He hasn't let himself think of it too much.

"We don't know that. And even if it would have happened anyway, that doesn't change that the way it did happen was my responsibility." He can feel the itch starting up in his elbow. "Oh good. A pair of addicts trying to get sober and clean in one house."