Unfortunately, the original problem still stands... how do we reach them?
To me this process seems pointless when we aren’t devoting enough time to space travel. The spirit of European explorers and American pioneers needs to be tapped into again so we can get people out there traveling to see what is really out there instead of just theorizing and making a best guess.
The explorers had to plan over decades. To reach other stars we will have to plan over hundreds and maybe thousands of years minimum, multi generationally. Hard to imagine when you think about the changes that have only occurred in the last 200 years. Some think we will launch something to somewhere and 100 years in halfway to target it will be just passed or picked up by something newer and much faster that we just sent.
Freegards
Unless and until there is found a way around the Speed Limit of the Universe, AKA the Speed of Light, space travel will remain the stuff of Sci-Fi novels and movies.
Not saying is impossible, just difficult....................