1. Who says precognition is available? Or that it doesn't come with the same problems? After all, precognition is just information travelling backwards in time... 2. Precognition is only (arguably) superior to time travel for situations when you're just using time travel precognitively. Theoretically, Mr. Burns could have that. Theoretically, Mr. Burns could have a machine that turns dirt into anything. In fact, this is a lot more likely, because it doesn't violate the Heisenburg Uncertainty Equation. Besides, that comes with its own problems... Which makes your oracle computer about as useful as a fortune cookie. Have you watched weather reports? You can make the same arguments for time travel. (Same with all other posts explaining that, actually.) Of course, with precognition, you can always just say you screwed up. Not exactly ground-breaking, but I'll look into it nonetheless. It may not be useless, but it's certainly use-impaired. There's a story with a...tertiary, I guess, character whose power is exactly that. Worm is said story. It's also a pretty good one, if long. It depends on the specificity of the predictions. You can safely say, for instance, "Christmas will be on December 25," with less certainty for "I will get presents on December 25th," even less for "I will get a sweater for Christmas," and less still for "I will get a red sweater for Christmas." The devil is in the details, but the redemption can be as well.