That's funny to hear.

But, I do mean it. That's not to say that the scientific method isn't a rational approach to gathering knowledge about the universe; but what we draw from the knowledge isn't always rational. Also, I would say that science does not reveal a privileged philosophy for living.

To the extent that the approach isn't flawed, scientific investigation can provide reliable knowledge. However, although scientific knowledge might be universal, it does not result in a universal perspective, or instruction.

Scientific knowledge is not modern, nor is its use limited to scientists. Of course, scientists are in the business of gathering more of it, but that business doesn't make a rational actor any more than a life in the theater might.

I would say that the scientific method can be an antidote to ignorance about the nature of the universe, and some irrationality stems from that type of ignorance. However, not all ignorance stems from imperfect knowledge of the universe, and as such, science is not a cure for irrationality.