Good science is reproduceable

I wish that when either Keith or I wishes to start a new experiment, Jon and Kayrn would return to how they are now, not effected by any wishes. I also wish that any wishes with the phrase 'Until the end of the experiment" would end when either of us wish the experiment over or when a new one starts." The stone flashed and Eric took a few deep breathes. He was a bit winded after such a long wish. Keith looked at him curiously. "What did all that do?" He asked. "It made a save point, of sorts. We can now start a new experiment easily. For instance. I wish to start a new experiment on Karyn and Jon!" The stone flashed. Keith glanced at the TV. "Nothing happened!" He exclaimed. "Of course not." Said Eric coolly. I haven't detailed what this experiment does yet." He raised the stone. "of course, no time like the present..."