Professor Dumbledore, Harry's ally and mentor, has a magical stone basin called a Pensieve that allows the characters to review memories in a sort of virtual reality scenario.

Scientists have used brain scans to read people's memories and work out where they were as they wandered around a virtual building.

When it came to throwing babies in Rescuties, I wanted to make sure the physical expectation of our muscle memories' matches the virtual reality of the arcing infants as best I could.