[LEAPSECS] BBC radio Crowd Science

[Greg Hennessy]

>> Leap seconds are a means to an end. It isn't just astronomers
>> who care about Earth orientation. Systems for navigation at sea, on
>> land, in the air, and in space are dependent on the current definition
>> of Coordinated Universal Time as exactly that,
>
> In the venacular of today, this claim is an "alternative fact".

As someone who gets paid to Celestial Navigation in a GPS denied 
situation, the OP's claim is correct.

Let's be more polite than to call people liars, err, alternative facters.