There is no logic to it, but it happens with enough regularity to be memorable: A tragedy occurs, and days later, journalists report that if it wasn’t for a quirk of fate it might have taken another victim. To wit, Dutch cyclist Maarten de Jong switched flights from Malaysian Airlines flights MH370 and MH17 at the last minute. The former flight is still unaccounted for and its passengers presumed dead while the latter was shot down over Ukraine. There is no genius in finding a cheaper flight or one with a shorter layover, as De Jong did. Nevertheless, he lived…