This was the ethos behind the old OSTAR, coined by Blondie Hasler who believed that anyone daft enough to attempt a single-handed voyage should not rely on outside help if it all turned to worms (or the nautical equivalent).
Nowadays a red button will summon a helicopter in minutes, and thank goodness too. We are not all born Cockleshell Heroes. Nevertheless the total self reliance that Hasler epitomised has an almost romantic appeal, as one yachtsman recently proved. From the Yachting Monthly website comes this inspiring story. Some might say it was sheer foolhardiness, but not me.