Eh? Check that thread again. What I said was both supported and corrected by the others on it. I was expecting a reply from you, and you chose to maintain silence, lest you further embarrass yourself due to ignorance of the limitations of laser weapons.
The string of comments on that thread would have made it obvious, to anyone with the ability to think, that a reply was owed.
Here's your quote:
"Even a laser cannon is probably too slow to react to a supersonic missile. It would have to instantaneously blast a beam in every possible anticipated direction to get a shot at it. How many and how fast can it repeat fire?"
The second sentence is the one that is unusually stupid.
All the laser has to do is shoot AT the missile, not in every possible anticipated direction.
The other people in the thread covered the "stealthy" aspects of the missile, detection of supsersonic/hypersonic missiles, and other means of defeating the threat without relying exclusively on ship-mounted detection and/or laser defenses.
In doing so they rendered the central assumption behind your question a moot point.
Cheers! Cheers!