thinking about self driving cars, but the cars are longer, with capacity for about 90 people per car. and maybe we could simplify the decision-making of the AI by providing a set path and schedule that they would adhere to. perhaps a physical mechanism on which the self-driving car could always be on, something like a rail to minimize them going off path and being a danger to cyclists or pedestrians. anyone in Silicon Valley want to fund this? we could even chain the cars together to maximize efficiency.