Hood and the transition toward fast battleships

Did Hood's loss to Bismarck prove that battlecruisers should never fight battleships?

It reinforces the danger, but Hood was a transitional design and the engagement reflected wartime necessity as well as ship type.

Battlecruisers were not intended to fight battleships in a sustained duel, though Hood had moved toward the emerging fast-battleship concept. A completed reconstruction might have improved her protection and moved the vulnerable ammunition arrangements implicated in her loss. Renown and Warspite had already provided experience for later capital-ship reconstructions, and a one-year shift in the war's timing could have put Hood, and perhaps Repulse, into that sequence. The Denmark Strait engagement also reflected the urgent need to cover a vast area of ocean with the ships available. Labels such as battlecruiser and fast battleship overlap in practice, while modernisation timing could determine where an individual ship fell.