The Solution

Elon Musk paused, and downed another swig. "Currency," gulp, "is the practical essence of value, a mathematical nomination attributed to the fair market worth of something."

"Coin?"

"Yes, and no. The ancient world knew currency as coin, until paper money, until digital money. Currency is the means by which one acquires value, or capital, and 'UBI' is Universal Basic Income, or a guaranteed recurring income of currency for all."

"And what would that encompass?" asked Alexander the Great.

"It would encompass a guaranteed amount of shelter, medicine, food, and education," replied Musk. "It would encompass a slice of the pie we call society."

Pythagoras chortled. "And what if there are too many more particpants than there is pie?"

"I doubt that is the case, especially with our expected technological output."

"What is that figure?" Plato asked.