Could Radical Dreamers somehow have taken place before Chrono Trigger?
Chrono Cross, as we know it, took place 20 years after Trigger and used Elements. Yet Radical Dreamers, the very game is was based off of, had characters using magic just as those of Zeal had. If RD had taken place 20 years after CT, only 3 people would remain in 1000 AD who knew magic (Crono, Marle, & Lucca). Unless they had a method to transfer the ability of magic to others, there's no way RD Serge would have known how to cast a spell (as he says in the opening battle). Unless, of course, Magil/Magus taught him the ways of magic, but that's a low chance considering it's highly unlikely that out of anyone Serge would be able to use magic, as the Zealians did.
Obviously, RD takes place quite a time after 12,000 BC and the Ocean Palace incident given the remains of Zeal and Kid existing, and possibly after 600 AD considering the use of machinery. Perhaps somewhere along the lines of 800 to 900 AD, I think.
Any thoughts?