Spacetime singularities and curvature blow-ups

The singularity theorems of Penrose, Hawking, and Geroch predict the existence incomplete inextendible causal geodesics in a wide range physically adequate spacetimes modeling gravitational collapse stars expanding universe. Here, using results on spacetime extensions, it is shown that if suitable low regular form strong cosmic censor hypothesis holds, then parallelly propagated blow-up either tidal force or frame-drag part curvature must occur ``generic'' timelike geodesically maximal Cauchy developments.