its like we have all been saying from the off, you just cant rule anything out because who knows what is possible in the future that isnt possible now
But you can.
While interstellar travel may eventually become possible, it ain't gonna be so for humans.
Because we'll have wiped ourselves out long before.
Same will likely be the case for "aliens".
And even for those that have not, the sheer distances will severely curtail their adventures.
(My "aliens" comments are just hunches. With regard to my " humans" ones though, they're racing certainties).