Dan Ives, a notable analyst at Wedbush Securities, has a $500 price target on Tesla ( TSLA 3.13%) stock -- the highest of any analyst. Why is he so bullish? It all comes down to a $1 trillion opportunity that he thinks should send Tesla's stock price soaring for years to come.

As more people ask chatbots for financial advice, creating the right prompts is the key to getting useful answers.