# Infinity is Much Bigger Than You Think

**∞**is an abstract concept describing something without any bound or larger than any number. Modern mathematics uses the concept of infinity in the solution of many practical and theoretical problems, such as in calculus and set theory, and the idea also is used in physics and the other sciences. Sometimes infinity is even bigger than you think... Dr James Grime explains with a little help from Georg Cantor in the video below.

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