Safe temporal tourism #poem

 -

the ideal planet we had found surely –
its idiotic inhabitants had condemned it –
and there was no way to save them –
so even if they were looking like us –
.
just enough for us to go visit it simply –
and move around without being noticed –
then a time matrix was installed by us –
with cyclic portals well interconnected –
.
but only our tourists can use them –
and so all the places and times to visit –
but there are no paradoxes to be feared –
as they were irretrievably condemned –