czynnik losowy

"Until the day when the favorable random factors run out."

"If so, we have had favorable random factors for a lifetime."

What kind of random factors would that throw in?

The only random factor was the time of his death, and even that could have been determined by appropriate action.

Until this arms trouble blew up there were no random factors.

In the pilot this was called by Vic "random factor".

The random factor had made sense to the children.

An inverted problem, outside normal computer logic, its factors too random.

"How was I to know you'd introduce random factors into the probability equation?"

I wouldn't care to be the one to try; there are too many random factors.