I don't follow your objection to my use of the word "actually", Wolfgang. It's a normal way of speaking, isn't it? However, I shall rephrase my statement.

I have my doubts that the present scientific theories about the origins of human life on this planet are correct. I don't think the scientists have the foggiest idea where human beings came from or when. I think they're as far at sea about it as the Catholic Church and the Ayatollah What's-his-name, only in a completely different way.

Is that clear enough?