Maybe there’s a framework of rules that the time traveler must adhere to (or risk being disintegrated by the time police).
For example, specific knowledge of the future is off-limits, but it’s OK to give basic advice as long as it’s already general knowledge for the time period you’re traveling to. Make sound investments, eat right, exercise, don’t smoke, etc.
Maybe there’s a framework of rules that the time traveler must adhere to (or risk being disintegrated by the time police).
For example, specific knowledge of the future is off-limits, but it’s OK to give basic advice as long as it’s already general knowledge for the time period you’re traveling to. Make sound investments, eat right, exercise, don’t smoke, etc.
Wear sunscreen
Sunscreen good. No sunscreen bad. Rest of advice, based on years of Jedi experience, I dispense… now.