Hard disagree here. There's a lot of differences between science and theology. There is nothing divine or holy about potential past civilizations.

Divine/Holy are how powerful people prevent others from questioning things. I didn't mention Divine or Holy, just theology.

The core difference between Science and Theology is how they deal with statements of "truth" without evidence.

Theology starts with "it's true because I said so"

Science starts with "it's true because I can demonstrate it"

That humans were complex in the past is a good hypothesis. It needs evidence before it can be accepted as fact, or even necessarily expect respect from others. The lack of recent skull changes would seem to be a good start.

If someone believes the hypothesis to be true, they will go explore and find evidence to back their claims. If there was a complex society in the English Channel, it's likely well preserved, just waiting to be found!

>Theology starts with "it's true because I said so"

To believe this is to cut yourself off from an unfathomably rich collection of human knowledge, and it is sad to see someone committed to it.

Except, that's what it literally is.

God speaks to someone. That someone says "It's true because God told me so."

I have read religious works, I'm not cut off from them. It's impossible to be cut off from theology in the USA. However, they all start with "it is true because I (the author) say so".