User blog comment:Urrgasch/Don Freecss/@comment-23822532-20140619155731

As Zi23 already pointed out, it's impossible that Don is actually Ging Freecss, but there are two possibilities regarding him:

- He's become immortal and has lived long enough to have Ging as his son (technically there's no limit for a man to have a son), and is still writing the book, or he is dead after living so much time.

- He is friggin' dead and Ging wants to continue his quest.

Remember that when Netero was young (30-50 years old) Ging wasn't even born, and he banned the voyages to the Dark Continent since the risks were much higher compared to the rewards when he became Chairman, Zigg Zoldyck probably died in that voyage for all we know. All the voyages made after that were under strict regulations and none of those was sucessful, in all of them, Hunters weren't allowed to be involved thanks to Isaac Netero's rule.

Also, Netero was strong enough to survive the Dark Continent without 300 years of training, though it is a possibility he was affected by the Zombae disease, and that's why he never got to eat anything while he was training endlessly.