Discussion on answer by Moo: Seven-day validity for a UK Visa? Application was for a 6-month short stay visa

@Cronax Yes, fixing 50 odd years of software inventory cost 1%-3% of global GDP to fix. "lot less problematic than it is often made out to be"; the world moved mountains to fix Y2K and it worked, that doesn't mean it wasn't a problem. If costs scale linearly, 8000 years of software inventory would require 160%-480% of global GDP to fix.