Jan would be optimistic even if the world was burning.
He's been optimistic for 8 years, and never a project completed.
You want to know why?
He's paid to be happy & joyful when shareholders call/email.
When he sounds optimistic, they buy more shares to put more cash into Carl's pocket so he can go on vacations and tell tall tales of TOP SECRET customers and projects that only get so far, only to never be mentioned again.