Assume you have all the luxuries of a modern life in your Tardis (toilet, hot showers, TV, books, game console, …) which doubles as a mini self-sufficient apartment with it’s own energy stores and generation.
Where in history would you go if comfort wasn’t an issue?
I’d love to see the future, because I really am hopeful for humanity to move beyond all this bullshit to some post scarcity utopia :)) Failing that, I’d probably go watch Phineas Gage’s big moment, because, woah.