OK, great. So, if we assume the Miguel we meet is actually from Another World....
The Dead Sea in Home World could've came into existence in 12000 BC, without Miguel always remembering it. In Home World, when Serge survives, the Dead Sea is created. If it comes into existence in 12000 BC (when Chronopolis is introduced via the Time Crash), and Miguel comes to Home World only once it appears, he would remember 4 years in Chronopolis (Another World) and 10 years in the Dead Sea (Home World). That pretty neatly gets around that issue, which we were discussing in the other thread, and the 10 year issue with Kid traveling back in time since Miguel wouldn't have come to Home World until after that happened.
A little more support for the "H" idea I guess.