Julie Nolke traveled back in time three months from the present day to January. Because of time travel paradoxes, there was a limit to what she could say to her prior self. But she tried to leave some good hints about what she should be doing to prepare for the near future.
"Yeah, your definition of 'a pretty big deal' is going to change. For sure."
I really like this video because I've had this thought experiment myself. April 2020 John would warn January 2020 John to get better prepared to work from home and conduct homeschooling more effectively. I prepared for a natural disaster that was more intense, but of shorter duration.
-via My Modern Met