The good: Scifi demonstrates how outsider perspective is often valuable. The bad: Faster horse problem. You don't leard what people actually want or need. You

The good: Scifi demonstrates how outsider perspective is often valuable. The bad: Faster horse problem. You don't leard what people actually want or need. You learn what people might think they might want. For "new" ideas I like to read failed concepts from the dawn of the technology in question. You will find stuff that was conceived by masters of their field, but which failed for some relatively minor reason. Those minor reasons might not be true anymore.