"Something the doctor called mental load," Israfil said, "We control our cogs with our thoughts, as I'm sure you know as one of the engineers.  But supposedly it can strain our minds, and in Solomon's case, he was using his cog to amplify his ability."

"Nothing a little practice won't fix," Solomon said dismissively.

"I'm not sure you should be exercising either," Israfil said with some concern.