Supertasks

set of philosophical problems

thought experiment proposed by David Hilbert

hypothetical computational model

philosophical puzzle that is a variation on Zeno's paradoxes

A supertask is a countably infinite sequence of operations that occur sequentially within a finite interval of time. Supertasks are called hypertasks when the number of operations is uncountable. A hypertask that includes one task for each ordinal number is called an ultratask. The term "supertask" was coined by the philosopher James F. Thomson, who devised Thomson's lamp. The term "hypertask" derives from Clark and Read in their paper of that name.