Not saying implausible. Saying unproven potential.
If it works so well why have the failed to shoot at an object 100 yards away? 1 mile away?
We have been seeing headlines about successful test shots for over 5 years now. We know the basic ability is beyond lab theory.
But the speculation of 100 mile ranges is kind of stupid when they have yet to fire it more than 20 feet. We know what drag and gravity do to other objects moving at supersonic speeds over extended ranges, but it is all theory with this thing until they shoot at some thing more than 20 feet away.
It is a simple question. Why have they failed to fire at longer ranges?