Einstein? or Heisenberg? Who do you believe?

That’s correct, and explains why it is not appropriate to use the word “exact” in describing scientific results. We will never have an “exact” result, there will always be uncertainties. The word exact should only be used in an mathematical context… an exact solution to an equation. Sorry, couldn’t resist the urge to be pedantic.

Oh NO!!!

Uncertainty is expected…

Uncertainty is expected…

Uncertainty is expected…

Oh NO!!! Until I learned this, I had PLANS!

Billy

Don’t worry, Billy, you can still eat your birthday dinner as planned… you simply may have an extra crumb of cake on your plate at the end of the meal.

To me I dont think humans were ment to time travel jsut seems weird.