Key PointsRobotaxis and nuclear energy will be multidecade opportunities.SpaceX could unilaterally create several major markets.10 stocks we like better than NuScale Power › Most stocks aren't chasing trillion-dollar opportunities. But the three growth stocks below are. If you're looking for big upside potential, one of these promising investment opportunities should be for you. 1. Robotaxis will be a $10 trillion opportunity According to Ark In…