Well, you might say it's going to happen for sure. But you gotta remember, you know, some type of weird cosmological event might occur, some kind of strange, huge, planet-sized object in space might come and knock the Earth out of its rotation. Who knows what could happen. All of these have a very low, a very low likelihood, very, very, very, very, very low likelihood. But it's hard to say it's exactly one. If I'd said the probability that the sun will rise, sun will rise tomorrow, tomorrow, instead of saying one, I would probably say it's 0.999, and I would throw a lot of nines over here. I wouldn't say it's 0.9 repeating forever, and actually there's an interesting proof that 0.9 repeating forever is actually the same thing as one, which is a little counterintuitive.