Melchior: You can't find it anymore. It was a red stone that was once used as
money. Unfortunately, it hasn't been available for a very long time.
Basically, a very long time. If it's not avaliable in the present 1000AD, then theres no probability if it being there in the future. It's used up. That's why I believe that the last of all found dreamstone was used in the ruby knife, pendant and mammon machine. Actually, There was another quote i think that said that the only things made of the dreamstone "royal red rock" was the mammon machine, and the scraps and left over bits were finished off into the ruby knife and pendant.
As for Zeal, yeah, I don't believe they do anything on DNA etc.
But same with science. Their science is magical. Belthasar is the Guru of Reason and the only scientific genius there in Zeal. But even then, all of his inventions involve magic powering them. The Black Bird is said to resemble that of a bird when it flys, no just an airplane.
Same with the time machine, it was only started, we don't know how it looks if it looks like the Epoch or whatever. And the Ocean palace is like any other building, except underwater. The trouble of building it was most likely solved by using magic so that the water kept away, and the Earthbound ones could work on it.