The one word answer to this is “no.”
Our star system is a third or even fourth generation system. The first systems were composed entirely of hydrogen and helium (the helium forming in the fusion of hydrogen). Even today, the universe consists of 99 percent hydrogen and helium.
The heavier atoms (called “metals”) were formed in the burning of “the ash” of dying star systems and in implosions. The burning of the ash results in heavy atoms including iron, carbon and oxygen. It takes supernova to produce yet heavier atoms such as gold and uranium.
https://www.sciencelearn.org.nz/resources/1727-how-elements-are-formed
Now, think about our planet. In consists mostly of iron, nitrogen, carbon, etc., and has lesser quantities of just about everything else that doesn’t have a short half-life. This means that our star system had to have formed relatively recently, from materials expelled by supernovae. BUT this also means that ANY star system in which life could form had to have formed relatively recently.
IT IS THEREFORE IMPOSSIBLE for intelligent life to come to this star system “billions” of years ago.
If you want to push this thing to the limit, maybe intelligent life could have come here a few hundreds of millions of years ago.
Having said everything I have already said, it must be recognized that the formation of the universe, of stars and of star systems, of our star system in particular, of our planet, of life and of life in all of its wonderful variety involved a series of such improbable events that “miracle” is the only way to describe them. If, therefore, you belief in miracles, you might allow that supernatural creatures might have been here or anywhere or everywhere, from the beginning.
Amino acids are found in interstellar material.
Thus, it is possible, even likely that the “building blocks of life” were here from our solar system’s beginning, or were deposited from asteroid or comet collisions during the early years.
If true for us, probably true for many, if not most star systems in our galaxy.
Excellent post