I was recently discussing r"t 72 with a choshive kollel yungerman ( or at least he seems so to me).
We were particularly talking about the different opinions of what 72 means... 72 literally all over the globe, or 72 in E"Y only - and the rest of the world has to adjust that time according to 16.2 degrees of the sun bellow horizon.
This yungerman suggested that since r"t always lived in France, He didn't realize how fast it gets dark in E"Y. Would he had knows this, he wouldn't pasken 72.
It seems to me that such rationale goes k'neged the derech of the mesorah.
Rabbi Shapiro , am I correct, if yes - have I omitted anything?
Am I wrong, if yes - then why?