Re: Surely it's easy?
I think Dublin is just an over-priced visitors' centre nowadays - and it's actually made in Cork.
Although perhaps they know something about cosmology that the rest of us don't?
In which case, do Guinness manufacture the dark matter, or is Guinness just made out of it? And given the post-Guinness black poo issue, have we found an area where dark matter directly interacts with normal matter? [Insert your own joke about dropping heavy particles here...]