How Espers Trained
Warning: Little Math Ahead!
At a hundred percent Sync Rate, Line Controllers were capable of moving objects at a speed of one metre per second, but following linear paths. The refined objects could only weigh a maximum of one kilogram in total, movable only a metre around them.
But, the weight limit didn't conform to a single Refined Object. The psychic energy of Espers was capable of seeping through objects. Meaning, given the objects were Refined Objects of the Line controller and were lined up one after another within the one metre range, then the Line Controller would be able to seep his/her psychic arm through all of them.
As long as the total weight doesn't exceed a kilogram, the Line Controller would be able to lift all the Refined Objects. Also, the restriction the Line Controller faced only conformed to the direction of movement and not his psychic arm's morphing.