Buffett: Autonomous driving may reduce the occurrence of car accidents or reduce costs. Some people are starting to use it, and later data will also show what the future holds. It has been discussed a lot over the past few years. In the insurance industry, there were also discussions when Uber began to rise. For some things, past estimates were wrong. You think insurance is an easy business to do, but that's not the case. If car accidents could be reduced by 50%, that sounds great. We're looking for opportunities. Some people die in car accidents even after driving a car for many miles. This is not an easy figure to estimate.