Nvidia is betting that AI is going to change the way you use your computer — and with a new chip, the RTX Spark, it’s hoping to ensure it powers that new-fangled AI machine. The Verge’s Sean Hollister explains what’s inside the Spark, why Nvidia is taking on Apple, Intel, AMD, and the rest of the chip industry, and whether the world’s most valuable company has a shot at reinventing the personal computer. Without charging a fortune.