It should be illegal to yell 'Y2K' in a crowded economy.
It's appositival, if it's there. And it doesn't have to be there. And it's really obvious that it's there when it's there.
You can't have filenames longer than 14 chars. You can't even think about them!
Don't wear rollerskates to a tug-of-war.
Are you perchance running on a 64-bit machine?
You can’t change the past. You can’t even change the future, in the sense that you can only change the present one moment at a time, stubbornly, until the future unwinds itself into the stories of our lives.