How is it that in every universe where Krypton exists, no matter when it dies and by what mechanism, it always blows up just when Jor-El has built a prototype rocket just large enough for his baby son but before he gets to build a bigger one? And then he always ends up getting adopted by the Kents whether his rocket spends decades traveling through space or gets there overnight by hyperspace?
Because the ones where it didn't happen we don't hear about.