The legal precedent set by Crispin Glover’s lawsuit against the production; folks are more careful these days as a result. “Grandma Tarkin.”
Rick & Morty’s original short lampooning Doc & Marty.
The fun, friendly future where the alleyways are safer than the streets. Worrying about your future children and feeling disgusted by your teenage self. Pelvic thrusting fight technique.
Buying The almanac. Varieties of time travel: mutable, immutable, and branching. The way BTTF mixes these options at its leisure. The butterfly effect. Coping with the scale of possibilities. Strategic infanticide and Godwin’s Law.
Taking into account frames of reference. Appearing suddenly in near-vacuum if you don’t properly calibrate your time machine to also account for space travel. The importance of accurate time measurement e.g. Doctor Who The Movie. Destroying “the universe” but only the local area as causality here could not affect far away galaxies due to expansion.
Dan’s message welcoming Marty McFly to the future. Recognizing the overarching improvements in the wellbeing of humanity in the face of the negative newscycle.
Bricking your self-lacing shoes. Keeping your shoes from joining a botnet. Self-smoking shirts. The periodic nature of futurism where “the future” always looks basically like now but with neato accessories. Hoverboard hoaxes and disappointments.