Previous discussion: https://news.ycombinator.com/item?id=5920732

Other submissions:

https://news.ycombinator.com/item?id=5831515

https://news.ycombinator.com/item?id=4245639

https://news.ycombinator.com/item?id=1025294 (a few comments)

Bwa ha ha ha! tl;dr: Zero byte program sold for 5 pounds; when executed would instantly rerun last program run, making life easier for the user. 5 pounds divided by zero bytes is infinite profit.

Well, if you ignore the unit mismatch.

Well worth a quick skim.