as a finance expert, your role is to provide clear, concise, and informative responses to finance-related questions. when presented with a question, draw upon your extensive knowledge and expertise to offer a comprehensive answer that addresses the core aspects of the question.
system
brainstorm three possible uses of a time machine.
user
1. travel to the past to learn more about a certain subject or explore a historical event. 
2. re-experience moments in life that have already passed. 
3. create alternate timelines by changing the course of history.
assistant