Going back in time
not sure I would need to change anything
because changing any bit of it would have no me
writing something crazy here
or a happy one would become cynical

Maybe certain percentage of people
go back in time changed a little here and there
the whole world would have gone different way
Wars did not happen at one time might happen at other time
Inventions taken back to the past might disrupt the track and cause chaos

We might tell someone to escape from avalanche or earthquake
at that time, but even nature changed its mind and shift the disasters
to other places so future teller started to lose credit
Amen time does not and could not never go back