Critical, Critical, Critical

Are we in a critical state?

Photo: Priscilla Westra. Source: Fancycrave

A critical state is a concept from physical chemistry where something is ready for a phase change. Think of water turning to ice. When you look at a body of water that is just about to freeze, it looks the same as normal cold water. But microscopically, they’re quite different.

When water is close to freezing, it’s filled with innumerable tiny ice crystals – crystals so small that the water remains in liquid form. But this water is in a