Alchemy? Magic? Aqua Hypnotism?
The reality of this quirky little trick to instantly turn water into ice is far simpler - which just makes it cooler.
Grant Thompson, the man behind the clip, explains:
To get this effect, I put unopened bottles of water in the freezer for 90-115 minutes. The water gets supercooled, and when when it touches an ice crystal, it turns instantly to ice. It will also do this if the bottle is hit hard enough. The clip at the end is a bottle that was frozen for nearly 2-1/2 hours and the entire bottle froze immediately when I tried to unscrew the cap. Most of them won't make it that long.