Central planning will solve this problem.
One of President Reagan’s classic Russian jokes:
A Russian police man knocks on the door of a house and a boy answers.
“Where is your father?”, the policeman asks.
“He isn’t home.”, the boy answers.
“When will he be back?”
“He will be back in 1 month, 17 days and 9 hours.”
Amazed at the answer, the policeman asks, “How do you know that?”
“My father is a cosmonaut and he’s in space.”, the boy replied.
“Wow…so is your mother home?”
“No, she isn’t.”
“When will she be back?”
“Who knows. She went to the store to buy bread!”