I think it's more some of the practical issues I was thinking of, most of which can be resolved I'm sure eg,
"Britain would have legal issues to grapple with because GMT has been enshrined in law since 1880 as the standard by which national time is calculated."
It also seems to me that time is correctly judged by the true passage of a day ie it's relevance to the spinning of the earth rather than some artificial atomic clock. So I think we should devise ways of respecting the earth time, for that reason I would keep the leap seconds.
In years gone by (many years!!) the day lasted about 22 hours, the rhythm of life I think.
The quoted figure of 600 years makes no sense. Based on the number of seconds added from 1972 until the end of this year, 34 seconds in 36 years, as stated in the story, we are looking at a leap hour every 3811 years. Perhaps by then someone will have come up with a better idea.
The issue is that we have to keep the atomic clocks in tune with the rotation of the earth, because they're also linked to the GPS satellites. If the satellite time signal was allowed to get out of sync then satellite navigation devices would become increasingly inaccurate. Not much of a problem for your average Tom Tom, but vital for ships & aircraft.
This story explains it better than I can click here
But TV viewers will, at least those who watch BBC.
There'll be a short item filmed inside the Westminster Clock tower, showing how they reset Big Ben to deal with the extra second, and yours truly almost made it into the clock-room to watch it all happen. Unfortunately I couldn't get the necessary security clearance in time, so the kind BBC person who tried to wangle it for me couldn't get me in.