Lack of knowledge and a willingness to accept the mythology combine to create a rather distorted picture of history.

[culinarylore.com]

Remember, Ireland is a Catholic country and, as such, families tend to be large. To me this is evidence of overpopulation and mono culture.

Look into the history of Easter Island. Kevin Costner once a film titled "Rapa Nui". The island was settled by Polynesians and was a heavily forested island. As the natives cut the trees down for rope and canoes for fishing the trees disappeared until there was one left (the theme of the film). Anthropologists found bones in the trash middens and some were human. It is a very interesting story and, to me, a microcosm of what can happen planet wide.

[en.wikipedia.org]

"Do you remember the great potato famine in Ireland?" ffs it was 1835

How many potatoes does it take to kill an Irishman?.....none

Sorry is that a bit to soon

And today people protest against blight-resistant, GM potatoes....

There’s grass there too. They could have grazed.

Need carbs to survive besides fish? I'm not a nutritionist.

Only the shorelines really had access to numerous fish. Do you realize just how many fish would have to be caught daily to feed an entire nation? But good point.