When assessing the developement gap between man and ET from one of those advanced 100.000 civilisations I calculated somehwere above, then we do not talk of a gap in time of just 500 years. More like 5
million years and 5
hundred million years.
That's what makes all this speculation just a mixture of 1. typical human antropomorphising, and 2. - well, right that: ungrounded speculation.
In the 80s there was this TV series, "V". Back then, as a teen I thought it was cool, to soem degree. But if you look at it more closely, it simply is the most absurd nonsense you can think of. "Dallas" in space, "Dynasty" with funny costumes.
But I had a crush on that cute, blond good looking girl leading the resistance group.
