Mersenne

Here is a very special recording devoted to early 18th-century dance music for which we have recently rediscovered choreographies from the period. Such a discovery may well come as a surprise, since it is not generally realised that, long before the proliferation of various 20th-century systems of dance notation, an earlied system had already been invented and them forgotten, only to be rediscovered within the last few years.

Mathematical proof is the gold standard of knowledge. Once a mathematical statement has been proved with a rigorous argument, it counts as true throughout the universe and for all time. Imagine, then, the thrill of being able to prove something in mathematics. The experience is the closest you can get to glimpsing the abstract order behind all things.