Britain could have laid down a second Ark Royal immediately

When could the Royal Navy have laid down a second Ark Royal or a similar carrier?

It could have done so in the same year because a suitable yard space existed and the option was considered.

Britain could have laid down another Ark Royal in the same year as the first. A suitable shipyard space was available and the option was considered. The missing carrier therefore reflected a procurement choice rather than an unavoidable immediate shortage of building capacity. This sharpens the earlier counterfactual by identifying a concrete point at which policy could have diverged.