Memory manipulation is the stuff of sci-fi. Someday it could be real

In the world of Harry Potter, one’s memory can be manipulated with the flick of a wand. Albus Dumbledore reels wispy memories out of his head and puts them in a Pensieve. If he later dunks his head in that magical basin, he can see his past experiences with lifelike clarity. Hermione Granger, meanwhile, uses the spell “Obliviate” to remove herself from her parents’ memories to protect them from the wizarding world.

In real life, memories are not storable liquids or files…