No.
Because theory implies unfactual.
The mountains of facts in the field are more startling than even some students of the topic think.
Disbelieving naysayers are in for some incredible shocks.
Mountains of Facts? Are you algore? Provide ONE mountain of fact. Just one. Is there a body or a real UFO? Does anyone have a souvenir of the visit? Do you?
Here are the basic facts. The distance to the nearest star.. (not that it has a planet around it that is habitable is 4.3 light years).
Now a light-year equals 5.88 MILLION-MILLION miles (9.46 kilometers). This is the distance light travels in one year at a speed of 186,282 miles per second (299,792 kilometers per second). Alpha Centauri is 4.3 light-years from the Sun. It is a dim red star in the constellation of Centaurus that lies at a distance of over 40 MILLION MILLION Kilometers, some 270,000 times greater than the distance between the earth and the sun.
A light year equals 186,000 miles/second * 60 seconds/minute * 60 minutes/hour * 24 hours/day * 365 days/year = 5,865,696,000,000 miles/year. So a light year is 5,865,696,000,000 (trilion) miles.
And it is 4.3 light years to Alpha Centauri! That's a long way and definitely not something you can do in a life time. That is if there is a planet around star around Alpha Centauri (probably not as it is a double star).
Let& say that a star is 1 million light years away (AC is 4.3). The light from that star has traveled at the speed of light to reach us. Therefore, it has taken the star light 1 million years to get here, and the light we are seeing was created 1 million years ago. (X 4.3 to Alpha Centauri so 4.3 million years)
Now how many generations is that? Again, case closed.