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We show that regular changes of signature on brane-worlds in AdS bulks mayaccount for some types of the recently fashionable sudden singularities.Therefore, the possibility that the Universe seems to approach a future suddensingularity at an accelerated rate of expansion might simply be an indicationthat our braneworld is about to change from Lorentzian to Euclidean signature.Both the brane and the bulk remain fully regular everywhere. We present a modelin which the weak and strong energy conditions hold on the brane, in contrastwith the standard cosmologies leading to the analogous kinematical behaviour(that is, with a diverging Hubble factor).

Is the accelerated expansion evidence of a forthcoming change of signature on the brane?