The loop is made. Over and over until the collision. At that moment, severed fission.
"Explain to me how it works again."
"It pulls small particles of your Light as you use it and loops it at increasingly higher speeds."
"Why would I want my Light taken away? This sounds like a terrible piece of equipment."
"Close your mouth and listen. It does that until you strike something—"
"Good, good good good. This is better. Then what?"
"…"
"Go on."
"Then it whips the Light particles into each other at high speeds, causing a delayed—"
"DELAYED?!"
"A DELAYED FISSION REACTION."
"Why is it delayed?"
"Let's move on."
"Okay… could you just sum it up for me?"
"Punch something and an explosion will happen where you struck."
"Wonderful. Won't that hurt me?"
"If we're lucky, I'll be able to work that into the design specs."