Longest word. No, seriously, the longest word.
Here’s Dmitry Golubovskiy, CEO of Esquire Russia, reading the longest word in English. It’s the chemical name for titin, and it runs to 189,819 letters. It takes him three and a half hours to read the whole thing.
Titin ( /ˈtaɪtɪn/), also known as connectin, is a protein that in humans is encoded by the TTN gene. Titin is a giant protein that functions as a molecular spring which is responsible for the passive elasticity of muscle. It is composed of 244 individually folded protein domains connected by unstructured peptide sequences. These domains unfold when the protein is stretched and refold when the tension is removed. Titin is the largest known protein.