On the outer limits

[image error]The latest edition of RadioLab discusses the limits of endurance, human memory and artificial intelligence in a particularly good programme from the top tier science show.

The section on human endurance looks at the competitors in the Race Across America, an 800km bicyle race where the cyclists sleep on an hour or two a night and eventually start hallucinating as they race.

The story of Mr S, a case of someone with a seemingly limitless who was documented in A.R. Luria's book The Mind of a...