Could directed-energy weapons be especially effective against hypersonic missiles?
Short answerPotentially yes; systems such as DragonFire could become formidable interceptors if they mature and scale, and the ship would have ample electrical power for them.
NotesA viewer proposes directed-energy weapons as a defense against hypersonic missiles. The answer is conditionally positive: they could be highly effective if development produces reliable, deployable systems. The British DragonFire laser and similar projects are potentially formidable, especially if their output can be scaled. The battleship's unusually large electrical plant would make it a plausible host for such power-hungry defensive weapons. This remains a discussion of future potential rather than a proven fleet capability.