It’s about Time.....................
It suggests the author has no imagination. The past-present-future we exist in may be the optimum universe, with all other universe possibilities being much worse.
” For example, they could have killed Adolf Hitler and allowed six million Jews to thrive in Europe between 1939 and 1945. The fact that this never happened suggests that either time machines will never be constructed in our future or that their creators have no interest in saving human lives.”
That’s a rather odd conclusion. If they have the technical skills to create a time machine, maybe they have the wisdom not to use it.
a time machine is impossible because if it was EVER possible even 1 thousand years from now, we would have time travelers visiting constantly.
What has happened, has happened and nothing can change that.
Most Freepers will say this woman is lying about Einstein and Roswell—but she is persuasive:
All The Time In The World
Arthur C. Clarke
1952 short story read by Nicholas Boulton
https://archive.org/details/arthur-c.-clarke-all-the-time-in-the-world
There is only the Present, this moment, the Now... the Past is memory, the Future is Imagination...that’s it.
I was just discussing this with someone next week.
Timr travel will not happen or we would have been visited by someone from the future by now.