Favours were invented in Britain, in the bad economic years following Step Day as the pound collapsed when half of the population fled.[1]

It worked badly on the Datum because it was difficult to tax since the value was decided by the buyer and the seller at the point of transaction.

In the new worlds with places like Reboot, on Earth West 101,754, where life is full of little trades, it's the ideal currency.


  1. The Long Earth - Chapter 25
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