Building software implies various stages of planning, preparation and execution that vary in kind and degree depending on what's being built. [. . . ] Building a four-foot tower requires a steady hand, a level surface, and 10 undamaged beer cans. Building a tower 100 times that size doesn't merely require 100 times as many beer cans.
Everybody is presumed to know the law except His Majesty's judges, who have a Court of Appeal set over them to put them right.