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Riffs on the infinite ping-pong ball conundrum
Authors:Ami Mamolo  Tristram Bogart
Affiliation:1. Faculty of Education, Simon Fraser University , 8888 University Drive, Burnaby, BC V5A 1S6, Canada amamolo@sfu.ca;3. Department of Mathematics and Statistics, Queen's University , 99 University Avenue, Kingston, ON K7L 3N6, Canada
Abstract:This article presents a novel re-conceptualisation to a well-known problem – The Ping-Pong Ball Conundrum. We introduce a variant of this super-task by considering it through the lens of ‘measuring infinity’ – a conceptualisation of infinity that extrapolates measuring properties of numbers, rather than cardinal properties. This approach is consistent with a nonstandard analysis approach to infinite numbers, and gives credence to the intuitive (but otherwise normatively incorrect) resolution. We explore the mathematical motivation and consequences of this variant, as well as offer further ‘riffs’ on the infinite ball problem for consideration.
Keywords:infinity  measuring infinity  ping-pong balls  variations
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