Many faultlines and obstacles threaten the lifespan of this new arrangement
So how long can this peculiar hybrid of a Government actually last? Even before the deal on this never-before-seen minority coalition was dragged over the line, politicians of all hues at Leinster House were asking themselves that intriguing question.
The short answer is that minority governments have lasted the course well in many other countries - and some rather unlikely government arrangements in the Ireland of times past have also persisted.
Bertie Ahern's three-legged stool of 1997-2002 combined Fianna Fáil, the Progressive Democrats and four Independent TDs. At its inception it was given a potential lifespan of just a few months - but it ran for five years and Ahern was subsequently re-elected twice.