I mean we all have opinions, and I’m not saying mine are superior, I’m just basing mine on what I understand of physics, distances, biology, and time.
Based on that, the closest possible habitable planet, Proxima B, would still take thousands of years using known technology.
I’m assuming that light speed, or greater than light speed travel is not possible. No one has really come up with a scientifically plausible explanation of how it could be.
Unless someone can come up with a plausible explanation of how organisms can achieve lightspeed travel, then it’s unlikely that sentient beings will ever be able to meet, without multi-generational vehicles.
I do believe life exists outside of earth, the odds strongly favorite it, especially with the proof now that exoplanets do exist, but if you get a chance, and you’re probably already familiar with it, look up the Fermi paradox.
The distances involved are too great and the obstacles themselves are also too great for it to be plausible based on knowledge currently available.