soooo if an astronaut is defined as “a person who is trained to travel in a spacecraft”.
And a person is as defined “a human being regarded as an individual”.
Continuing on that path of definitions:
ancient is defined as “belonging to the very distant past and no longer in existence”
and a theorist is “concerned with the theoretical aspects of a subject”
Oh dear I see a problem do you?
How can we, by definition, have any “theorists” inventing a supposition of “ancient astronauts” since humans never went into space in ancient times
Add to that that all astronauts are people and therefore human by definition and cannot be aliens, as they would be more like “alien-nauts” or “alien invaders”
Finally we have space travel therefore that act of space travel is still in existence and not ancient as per the definition …
A vicious circle when we try and create pseudo terms