That isn't far enough back to make meaningful changes for me. If the weeping angels could send me back to the 70's with the knowledge I have today into my 70's body however then I could prevent many bad decisions, mistakes and could make better uses of opportunities that presented themselves to me. I could also save a few lives. It would be a massive list. I have not done much since 2021 for this to be useful however. Maybe I would get a different brand of food for the deer I suppose.

For me, probably not much change from the trajectory I am already on with respect to cybersecurity and ethics. Although I'd dump a couple of chapters I wrote.

But I love these questions because, if you do have a vision and sense for such thought experiments, then re-frame the question as if asked in 2027:

  " If you could go back to the end of 2023 with the knowledge you
  have now (2027) about what happened these past few years, what would
  you do? "