If you’d asked me as a child how long it would take to speak the longest word in the English language, I’d have guessed a couple of seconds. Antidisestablishmentarianism would have come to mind, as the longest word in my pocket Collins dictionary at the time, or supercalifragilisticexpialidocious if “made-up” words were allowed.
Later I met other odd giants, like pseudopseudohypoparathyroidism and pneumonoultramicroscopicsilicovolcanoconiosis with their unmistakeably medical morphemes. All these words (Mary Poppins aside) are known chiefly for being very long – but with a bit of practice you could voice any of them in a single breath.
They’re mere pipsqueaks compared with some chemical names, which are probably not words in a strict sense but are impressively massive all the same – especially the protein Titin, aka connectin, whose chemical name begins Methionylalanylthreonylseryl… and goes on like that for 189,819 letters. In this remarkable video, Dmitry Golubovskiy reads it in its entirety. It takes him just over 3½ hours:
You can read along here.
I didn’t watch the whole thing. After a couple of minutes I skipped ahead a bit, then watched the finale. His beard visibly darkens over the course of the performance, and he looks decidedly dazed at the end. The flowers wilt suddenly at 2:09:21 in a cut that suggests a bathroom break, or maybe a breather for sanity’s sake.
Hat-tip to @emordino for the video.