I kept seeing this trick pop up online: people projecting 3D holograms from their phones using nothing but a glass dish and plastic. I thought it had to be fake, edited in post, the kind of internet hack that looks great but doesn't actually work in real life.
I decided to try it myself just to see. Five minutes later, I had a working 3D hologram that actually looked magical with the lights turned off. It's genuinely impressive how well this works. It's not a true hologram. It's technically an optical illusion, but it looks close enough that it's immediately satisfying.
