When the bomb exploded

Agreed Looker. I am curious though if the peace will genuinely last. I hope it does. I'm in my 30s and remember growing up and hearing about Northern Ireland on the news and seeing the footage of bombings. I was most recently in Belfast in August and September and actually went, for the first time in my life, to the Falls Road area and then to the Shankill. I was mildly worried in some of the Unionists areas because they are just blighted and derelict - but the Catholic areas seemed more lively. I hadn't been to Belfast itself in nearly 10 years - and the last time I was there - 2005 - I was advised not to wander. It has changed dramatically in the intervening 10 years, as even friends of mine who live there will attest.

But I do wonder as to the stability you mention. I feel like people who lived through the conflict, so basically anyone born before let's say the late 80s, would probably not want to return to the uncertainty and violence. But the schools there remain largely segregated, with Catholics in Catholic schools and Protestants at state schools, so you already are having people inculcated with these tribal values at a very young age. And I think the antipathies linger, particularly amongst the working class. What I wonder is if at some point generations who never knew the conflict will resurrect it. For one, at some point in the next 50-60 years here (if not sooner), the Catholic birth rate will out-strip the Protestant, and they will hold a referendum on whether to join with the Republic of Ireland, per the terms of the GFA, and the Catholics/nationalists will vote yes and the Republic will vote yes - so it'll go yes. I would be SHOCKED if that didn't inspire a massive blood bath.

No, didn't serve in NI, in some ways (probably in more ways for my mother)much relieved.
I am a Scot (now living in England) and brought up in Edinburgh. Protestant and Catholics used to be segregated to an extent, when I was a boy and teen, but not to the extent as in Glasgow. Catholics largely had their own schools but that was as much their wish as any policy having been forced upon them. In Scotland's smaller towns, after primary schooling, the two communities mixed at secondary level. The divide was most noticeable in football, with teams either overwhelmingly RC or Protestant. I remember the area of the city I lived in we only knew one RC family in the same street, but we were all friendly with them, and vice versa. Glasgow was an entirely different story!
However, am still very much surprised how naive Hook has been shown in the film. Believe me, during these troubled times, everyone, but everyone had an opinion about NI(rarely positive, and usually heated) and with massive news coverage (in the very times of this movie)no excuse for anyone to not know the extent of the conflict and the bitterness.
Thank goodness now we have a peace, somewhat fragile, but it is holding and I believe, will hold.
My dread remains the extreme elements of the Republican movement will push too quickly for unity yet again, as the Protestant side still feels badly let down by the GFA. Not having visited NI (my mother did before WWII)unsure how deeply the Protestant feel about any further concessions to the Republicans but I would imagine not keen, as an understatement!
If there is ever a Yes vote to unity eventually, I would imagine hundreds and more likely many thousands of Protestants will move to other parts of the UK. After so many years of deep loyalty, the British Govt. of the day will have no alternative but to assist in that re-settlement should the domesday scenario ever take place.
Let's keep hoping peace holds and strengthens as the years pass.