Dusk--the long dark tea-time of the soul--is similar to an artificial condition called It's Anyone's Guess if the Lights Go Out.
If and when are much the same things to a programmer; a job can be an ingredient of necessity to a programmer.
Adding a conditional to the one, these two phrases might be logical implication.
I've been a little harsh with psychologists. The Big Bang was invented because measurement of astronomical distances requires us to contemplate hypotenuses.
If I put my legs just right I might form a triangle that is just about square, but my ankle doesn't allow my foot to make a nice line.
Not parodying no-one at all, for once, but proudly this time, I'll round this off with the expected response.
'Oh yes that.'