Rustycon 2019

From Nikola Tesla to ghosts on a highway, if a clone became president, how do writers explore alternate realities? How would you react in finding an alien robot in your backyard? How can we extrapolate what would have changed as a result of even one of history’s major turning points being changed? Where do you begin? What would you focus on when constructing an alternate history, and what do you set aside? What (if anything) would stay the same?