What's that, Lassie?
All he's done is ruin everything and make the world worse for everybody?
He's crashing the US economy?
He's doing hundreds of years worth of damage to the country?
Millions of innocent people's lives are ruined?
Millions of innocent people outside of the country will probably needlessly die because of him?
What's that, Lassie?
Huh? It almost sounds French.
Oh, guillotine.
GOOD DOG!
Mmmm..... As long as the os treated it as separate from the filename. One of the reasons extensions exist is so that the name of the file doesn't encroach with the self-identifying-filetype/extension. If you put it at the front as a prefix, you would lose the ability to have EITHER names of files OR extensions as separatable and simultaneous ordering systems.