We’re hurling through space at such speeds that if someone ever did manage to find a way to time travel more than a couple milliseconds in either direction, they’d end up in the cold vastness of space. Or worse; inside a very hot star.
Wonder why I never thought of it that way before. Time to scrap that time machine prototype I’ve been working on, ever since Back to the Future became popular. link.
This was done in the 2000 AD ‘Strontium Dog’ comic strip back in the 70′s/80′s